Medical Cannabis In The United States
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In the United States, the use of
cannabis ''Cannabis'' () is a genus of flowering plants in the family Cannabaceae. The number of species within the genus is disputed. Three species may be recognized: ''Cannabis sativa'', '' C. indica'', and '' C. ruderalis''. Alternatively ...
for medical purposes is legal in 37 states, four out of five permanently inhabited
U.S. territories Territories of the United States are sub-national administrative divisions overseen by the federal government of the United States. The various American territories differ from the U.S. states and tribal reservations as they are not sover ...
, and the
District of Columbia ) , image_skyline = , image_caption = Clockwise from top left: the Washington Monument and Lincoln Memorial on the National Mall, United States Capitol, Logan Circle, Jefferson Memorial, White House, Adams Morgan, ...
, as of February 2022. Eleven other states have more restrictive laws limiting
THC Tetrahydrocannabinol (THC) is the principal psychoactive constituent of cannabis and one of at least 113 total cannabinoids identified on the plant. Although the chemical formula for THC (C21H30O2) describes multiple isomers, the term ''THC' ...
content, for the purpose of allowing access to products that are rich in
cannabidiol Cannabidiol (CBD) is a phytocannabinoid discovered in 1940. It is one of 113 identified cannabinoids in cannabis plants, along with tetrahydrocannabinol (THC), and accounts for up to 40% of the plant's extract. , clinical research on CBD incl ...
(CBD), a non-psychoactive component of cannabis. There is significant variation in medical cannabis laws from state to state, including how it is produced and distributed, how it can be consumed, and what medical conditions it can be used for. The first state to effectively legalize medical cannabis was
California California is a U.S. state, state in the Western United States, located along the West Coast of the United States, Pacific Coast. With nearly 39.2million residents across a total area of approximately , it is the List of states and territori ...
in 1996, when voters approved
Proposition 215 Proposition 215, or the Compassionate Use Act of 1996, is a California law permitting the use of medical cannabis despite marijuana's lack of the normal Food and Drug Administration testing for safety and efficacy. It was enacted, on November 5 ...
by a 56–44 margin. Several states followed with successful ballot initiatives in 1998, and in 2000
Hawaii Hawaii ( ; haw, Hawaii or ) is a state in the Western United States, located in the Pacific Ocean about from the U.S. mainland. It is the only U.S. state outside North America, the only state that is an archipelago, and the only stat ...
became the first to legalize through an act of state legislature. By 2016, legalization of medical cannabis had spread to a majority of states. At the federal level, cannabis remains a prohibited substance by way of the
Controlled Substances Act The Controlled Substances Act (CSA) is the statute establishing federal government of the United States, federal drug policy of the United States, U.S. drug policy under which the manufacture, importation, possession, use, and distribution of ...
of 1970. Under the CSA, the
Drug Enforcement Administration The Drug Enforcement Administration (DEA; ) is a Federal law enforcement in the United States, United States federal law enforcement agency under the U.S. Department of Justice tasked with combating drug trafficking and distribution within th ...
classifies cannabis as a Schedule I drug, determined to have a high potential for abuse and no accepted medical use – thereby prohibiting its use for any purpose. The
Justice Department A justice ministry, ministry of justice, or department of justice is a ministry or other government agency in charge of the administration of justice. The ministry or department is often headed by a minister of justice (minister for justice in a ...
has enforced this policy through various means, including criminal prosecutions,
civil asset forfeiture Civil may refer to: *Civic virtue, or civility *Civil action, or lawsuit *Civil affairs *Civil and political rights *Civil disobedience *Civil engineering *Civil (journalism), a platform for independent journalism *Civilian, someone not a member ...
, and paramilitary-style raids targeting medical cannabis providers, and various penalties threatened or initiated against other individuals involved in state-legal medical cannabis activities (doctors, landlords, state officials and employees). In December 2014, however, the
Rohrabacher–Farr amendment The Rohrabacher–Farr amendment (also known as the Rohrabacher–Blumenauer amendment) is legislation first introduced by U.S. Rep. Maurice Hinchey in 2001, prohibiting the Justice Department from spending funds to interfere with the implementation ...
was signed into law, prohibiting the Justice Department from spending funds to interfere with the implementation of state medical cannabis laws. In October 2022, President Joe Biden announced that he would ask the Secretary of Health and Human Services and Attorney General to initiate a review as to how cannabis should be scheduled under federal law, adding that the current classification of cannabis "makes no sense".


Early medical use in the U.S.

The medical use of cannabis dates back thousands of years, to ancient China, India, and Egypt. It was popularized in Western medicine by the Irish physician
William Brooke O'Shaughnessy Sir William Brooke O'Shaughnessy (from 1861 as William O'Shaughnessy Brooke) MD FRS (October 1809, in Limerick, Ireland – 8 January 1889, in Southsea, England) was an Irish physician famous for his wide-ranging scientific work in pharmacology, ...
, who was introduced to the drug in the 1830s while living abroad in India. O'Shaughnessy documented a number of medical applications for cannabis from the experiments he conducted, noting in particular its
analgesic An analgesic drug, also called simply an analgesic (American English), analgaesic (British English), pain reliever, or painkiller, is any member of the group of drugs used to achieve relief from pain (that is, analgesia or pain management). It ...
and
anticonvulsant Anticonvulsants (also known as antiepileptic drugs or recently as antiseizure drugs) are a diverse group of pharmacological agents used in the treatment of epileptic seizures. Anticonvulsants are also increasingly being used in the treatment of b ...
effects. He returned to England with a supply of cannabis in 1842, after which its use as medicine quickly spread throughout Europe and the United States. Cannabis was entered into the
United States Pharmacopeia The ''United States Pharmacopeia'' (''USP'') is a pharmacopeia (compendium of drug information) for the United States published annually by the United States Pharmacopeial Convention (usually also called the USP), a nonprofit organization that ...
in 1850, as a treatment for
neuralgia Neuralgia (Greek ''neuron'', "nerve" + ''algos'', "pain") is pain in the distribution of one or more nerves, as in intercostal neuralgia, trigeminal neuralgia, and glossopharyngeal neuralgia. Classification Under the general heading of neuralg ...
,
tetanus Tetanus, also known as lockjaw, is a bacterial infection caused by ''Clostridium tetani'', and is characterized by muscle spasms. In the most common type, the spasms begin in the jaw and then progress to the rest of the body. Each spasm usually ...
,
typhus Typhus, also known as typhus fever, is a group of infectious diseases that include epidemic typhus, scrub typhus, and murine typhus. Common symptoms include fever, headache, and a rash. Typically these begin one to two weeks after exposure. ...
,
cholera Cholera is an infection of the small intestine by some strains of the bacterium ''Vibrio cholerae''. Symptoms may range from none, to mild, to severe. The classic symptom is large amounts of watery diarrhea that lasts a few days. Vomiting and ...
,
rabies Rabies is a viral disease that causes encephalitis in humans and other mammals. Early symptoms can include fever and tingling at the site of exposure. These symptoms are followed by one or more of the following symptoms: nausea, vomiting, vi ...
,
dysentery Dysentery (UK pronunciation: , US: ), historically known as the bloody flux, is a type of gastroenteritis that results in bloody diarrhea. Other symptoms may include fever, abdominal pain, and a feeling of incomplete defecation. Complications ...
,
alcoholism Alcoholism is, broadly, any drinking of alcohol (drug), alcohol that results in significant Mental health, mental or physical health problems. Because there is disagreement on the definition of the word ''alcoholism'', it is not a recognize ...
,
opiate addiction Opioid use disorder (OUD) is a substance use disorder characterized by cravings for opioids, continued use despite physical and/or psychological deterioration, increased tolerance with use, and withdrawal symptoms after discontinuing opioids. Op ...
,
anthrax Anthrax is an infection caused by the bacterium ''Bacillus anthracis''. It can occur in four forms: skin, lungs, intestinal, and injection. Symptom onset occurs between one day and more than two months after the infection is contracted. The sk ...
,
leprosy Leprosy, also known as Hansen's disease (HD), is a long-term infection by the bacteria ''Mycobacterium leprae'' or ''Mycobacterium lepromatosis''. Infection can lead to damage of the nerves, respiratory tract, skin, and eyes. This nerve damag ...
,
incontinence Incontinence or Incontinent may refer to: *Fecal incontinence, the involuntary excretion of bowel contents *Urinary incontinence, the involuntary excretion of urine * Lack of moderation or self-control, especially related to sexual desire - see I ...
,
snakebite A snakebite is an injury caused by the bite of a snake, especially a venomous snake. A common sign of a bite from a venomous snake is the presence of two puncture wounds from the animal's fangs. Sometimes venom injection from the bite may occu ...
,
gout Gout ( ) is a form of inflammatory arthritis characterized by recurrent attacks of a red, tender, hot and swollen joint, caused by deposition of monosodium urate monohydrate crystals. Pain typically comes on rapidly, reaching maximal intensit ...
, convulsive disorders,
tonsillitis Tonsillitis is inflammation of the tonsils in the upper part of the throat. It can be acute or chronic. Acute tonsillitis typically has a rapid onset. Symptoms may include sore throat, fever, enlargement of the tonsils, trouble swallowing, and en ...
,
insanity Insanity, madness, lunacy, and craziness are behaviors performed by certain abnormal mental or behavioral patterns. Insanity can be manifest as violations of societal norms, including a person or persons becoming a danger to themselves or to ...
, excessive menstrual bleeding, and
uterine bleeding Vaginal bleeding is any expulsion of blood from the vagina. This bleeding may originate from the uterus, vaginal wall, or cervix. Generally, it is either part of a normal menstrual cycle or is caused by hormonal or other problems of the reproduct ...
. It was widely available in pharmacies and even grocery stores during the latter half of the 19th century, priced affordably relative to other drugs with no requirement for a doctor's prescription. Cannabis was commonly sold in
tincture A tincture is typically an extract of plant or animal material dissolved in ethanol (ethyl alcohol). Solvent concentrations of 25–60% are common, but may run as high as 90%.Groot Handboek Geneeskrachtige Planten by Geert Verhelst In chemistr ...
form by
Parke-Davis Parke-Davis is a subsidiary of the pharmaceutical company Pfizer. Although Parke, Davis & Co. is no longer an independent corporation, it was once America's oldest and largest drug maker, and played an important role in medical history. In 1970 ...
,
Eli Lilly Eli Lilly (July 8, 1838 – June 6, 1898) was an American soldier, pharmacist, chemist, and businessman who founded the Eli Lilly and Company pharmaceutical corporation. Lilly enlisted in the Union Army during the American Civil War and r ...
, E. R. Squibb & Sons, and other drug manufacturers. By the end of the 19th century, the use of cannabis in medicine had declined due to a number of factors, including difficulty in controlling dosages and the rise in popularity of synthetic and opium-derived drugs. The advent of the hypodermic syringe also allowed these drugs to be injected for immediate effect, in contrast to cannabis which is not water-soluble and therefore cannot be injected. Additionally, as fears regarding the
recreational use Recreational drug use indicates the use of one or more psychoactive drugs to induce an altered state of consciousness either for pleasure or for some other casual purpose or pastime by modifying the perceptions and emotions of the user. When a ...
of cannabis began to take hold (prompted by sensationalist media reports and government propaganda campaigns), states began passing legislation to restrict the sale and possession of cannabis, eliminating its availability as an
over-the-counter drug Over-the-counter (OTC) drugs are medicines sold directly to a consumer without a requirement for a prescription from a healthcare professional, as opposed to prescription drugs A prescription drug (also prescription medication or prescripti ...
. By 1936, every state had passed a law of this manner. The use of cannabis as medicine further declined with the passage of the
Marihuana Tax Act of 1937 The Marihuana Tax Act of 1937, , was a United States Act that placed a tax on the sale of cannabis. The H.R. 6385 act was drafted by Harry Anslinger and introduced by Rep. Robert L. Doughton of North Carolina, on April 14, 1937. The Seventy-fift ...
. The purpose of the act was to prohibit all non-medical use of cannabis in the U.S.; however, it also had the effect of severely curtailing medical use of the drug, due to new fees and regulatory requirements put in place that imposed a significant burden on doctors prescribing cannabis. For this reason the
American Medical Association The American Medical Association (AMA) is a professional association and lobbying group of physicians and medical students. Founded in 1847, it is headquartered in Chicago, Illinois. Membership was approximately 240,000 in 2016. The AMA's state ...
opposed the Marihuana Tax Act of 1937, but to no avail. Cannabis was removed from the U.S. Pharmacopeia in 1941, at the urging of famed anti-cannabis crusader
Harry Anslinger Harry may refer to: TV shows * ''Harry'' (American TV series), a 1987 American comedy series starring Alan Arkin * ''Harry'' (British TV series), a 1993 BBC drama that ran for two seasons * ''Harry'' (talk show), a 2016 American daytime talk show ...
. During the 1960s, as large numbers of people began to use cannabis recreationally, the medical utility of cannabis was rediscovered by some as anecdotes began to appear about its effectiveness in treating a variety of medical conditions. It was officially banned for even medical use, however, following the passage of the 1970
Controlled Substances Act The Controlled Substances Act (CSA) is the statute establishing federal government of the United States, federal drug policy of the United States, U.S. drug policy under which the manufacture, importation, possession, use, and distribution of ...
. Despite the strict federal prohibition in place, cannabis continued to gain renewed interest as medicine in the 1970s and 1980s, in particular due to the testimonials of cancer and AIDS patients who reported significant relief from the effects of
chemotherapy Chemotherapy (often abbreviated to chemo and sometimes CTX or CTx) is a type of cancer treatment that uses one or more anti-cancer drugs (chemotherapeutic agents or alkylating agents) as part of a standardized chemotherapy regimen. Chemotherap ...
and
wasting syndrome Cachexia () is a complex syndrome associated with an underlying illness, causing ongoing muscle loss that is not entirely reversed with nutritional supplementation. A range of diseases can cause cachexia, most commonly cancer, congestive heart f ...
. The smoking method of consumption – popularized by recreational users of the drug – offered particular aid to patients who had trouble keeping down oral medication, and also offered advantages in terms of rapid
onset of action Onset of action is the duration of time it takes for a drug's effects to come to prominence upon administration. With oral administration, it typically ranges anywhere from 20 minutes to over an hour, depending on the drug in question. Other meth ...
and the ability to more carefully control dosages.


Federal policy


Controlled Substances Act

On October 27, 1970, the Comprehensive Drug Abuse Prevention and Control Act was signed into law by
President Richard Nixon Richard Milhous Nixon (January 9, 1913April 22, 1994) was the 37th president of the United States, serving from 1969 to 1974. A member of the Republican Party, he previously served as a representative and senator from California and was ...
. Title II of the act – the
Controlled Substances Act The Controlled Substances Act (CSA) is the statute establishing federal government of the United States, federal drug policy of the United States, U.S. drug policy under which the manufacture, importation, possession, use, and distribution of ...
– established a system under which all controlled substances are categorized, varying from Schedule I (the strictest classification) to Schedule V (the least strict). Cannabis was placed in the Schedule I category, assumed to have a high potential for abuse and no accepted medical use – thereby prohibiting its use for any purpose. This placement was intended only as a temporary measure, however, pending the results of a commission formed under decree of the CSA to study the dangers of cannabis. Formally known as the National Commission on Marihuana and Drug Abuse, the
Shafer Commission The Shafer Commission, formally known as the National Commission on Marihuana and Drug Abuse, was appointed by U.S. President Richard Nixon in the early 1970s. Its chairman was former Pennsylvania Governor Raymond P. Shafer. The commission is ...
– led by former Pennsylvania governor Raymond P. Shafer – determined in its March 1972 report to the President and Congress that the societal harms caused by cannabis were limited, and recommended removal of criminal penalties for possession and distribution of small amounts of the drug. Although the report did not specifically address the scheduling of cannabis, it did not contain any findings that supported continued placement in the Schedule I category, and members of the commission acknowledged that cannabis did not meet the Schedule I criteria. This was of no consequence, however, as President Nixon firmly rejected the findings of the commission, and no action was taken to move cannabis into a less restrictive category. The Schedule I classification of cannabis remains in place today, alongside other drugs such as
heroin Heroin, also known as diacetylmorphine and diamorphine among other names, is a potent opioid mainly used as a recreational drug for its euphoric effects. Medical grade diamorphine is used as a pure hydrochloride salt. Various white and brow ...
,
LSD Lysergic acid diethylamide (LSD), also known colloquially as acid, is a potent psychedelic drug. Effects typically include intensified thoughts, emotions, and sensory perception. At sufficiently high dosages LSD manifests primarily mental, vi ...
,
MDMA 3,4-Methylenedioxymethamphetamine (MDMA), commonly seen in Tablet (pharmacy), tablet form (ecstasy) and crystal form (molly or mandy), is a potent empathogen–entactogen with stimulant properties primarily used for Recreational dru ...
, DMT, and
peyote The peyote (; ''Lophophora williamsii'' ) is a small, spineless cactus which contains psychoactive alkaloids, particularly mescaline. ''Peyote'' is a Spanish word derived from the Nahuatl (), meaning "caterpillar cocoon", from a root , "to gl ...
– none of which can be prescribed. Schedule II drugs – determined to have a high potential for abuse but also some accepted medical use (thus able to be prescribed) – include
cocaine Cocaine (from , from , ultimately from Quechuan languages, Quechua: ''kúka'') is a central nervous system (CNS) stimulant mainly recreational drug use, used recreationally for its euphoria, euphoric effects. It is primarily obtained from t ...
, PCP,
methamphetamine Methamphetamine (contracted from ) is a potent central nervous system (CNS) stimulant that is mainly used as a recreational drug and less commonly as a second-line treatment for attention deficit hyperactivity disorder and obesity. Methamph ...
,
oxycodone Oxycodone, sold under various brand names such as Roxicodone and OxyContin (which is the extended release form), is a strong, semi-synthetic opioid used medically for treatment of moderate to severe pain. It is highly addictive and a commonly ...
, and
fentanyl Fentanyl, also spelled fentanil, is a very potent synthetic opioid used as a pain medication. Together with other drugs, fentanyl is used for anesthesia. It is also used illicitly as a recreational drug, sometimes mixed with heroin, cocaine ...
.


Rescheduling efforts

Since enactment of the Controlled Substances Act, there have been a number of efforts seeking to place cannabis in a less restrictive category, but none have succeeded. The
Drug Enforcement Administration The Drug Enforcement Administration (DEA; ) is a Federal law enforcement in the United States, United States federal law enforcement agency under the U.S. Department of Justice tasked with combating drug trafficking and distribution within th ...
is granted authority under the CSA to change the classification of any drug, based upon the recommendation of the
Food and Drug Administration The United States Food and Drug Administration (FDA or US FDA) is a List of United States federal agencies, federal agency of the United States Department of Health and Human Services, Department of Health and Human Services. The FDA is respon ...
which evaluates all drugs for safety and efficacy. As recently as 2016, the FDA has determined that cannabis has "no currently accepted medical use in treatment in the United States", in response to a petition filed with the DEA in 2011 by the governors of Washington and Rhode Island. Previous efforts to petition the DEA for rescheduling have also been unsuccessful, spanning the years 1972–1994, 1995–2001, and 2002–2013. Congressional attempts to reschedule have failed as well, including a 1981 bill introduced by Reps. Stewart McKinney and
Newt Gingrich Newton Leroy Gingrich (; né McPherson; born June 17, 1943) is an American politician and author who served as the 50th speaker of the United States House of Representatives from 1995 to 1999. A member of the Republican Party, he was the U ...
that grew to 84 cosponsors but never received a floor vote. In October 2022, President Joe Biden announced that he would ask the Secretary of Health and Human Services and Attorney General to initiate a review as to how cannabis should be scheduled under federal law, adding that the current classification of cannabis "makes no sense". The classification of cannabis as a Schedule I drug was first challenged by the
National Organization for the Reform of Marijuana Laws The National Organization for the Reform of Marijuana Laws (NORML ) is a social welfare organization based in Washington, D.C., that advocates for the reform of marijuana laws in the United States regarding both medical and non-medical use. Acc ...
(NORML) in a 1972 petition to the
Bureau of Narcotics and Dangerous Drugs The Bureau of Narcotics and Dangerous Drugs (BNDD) was a bureau within the United States Department of Justice (DOJ) and a predecessor agency of the modern Drug Enforcement Administration (DEA). History It was created by § 3 of the Reorganizatio ...
(which was merged with other agencies to form the DEA in 1973). After a decade of legal battles in which the DEA refused to consider the petition, public hearings were finally held on the matter beginning in 1986. In September 1988, after two years of extensive public hearings, DEA Chief Administrative Law Judge Francis L. Young ruled in favor of moving cannabis to a Schedule II classification, finding that "Marijuana, in its natural form, is one of the safest therapeutically active substances known to man." Young concluded: "The evidence in this record clearly shows that marijuana has been accepted as capable of relieving the distress of great numbers of very ill people, and doing so with safety under medical supervision. It would be unreasonable, arbitrary and capricious for DEA to continue to stand between those sufferers and the benefits of this substance in light of the evidence in this record." As Young's ruling was only a non-binding recommendation, however, it was rejected by DEA Administrator John Lawn in December 1989. In February 1994, a final ruling on the original 1972 petition was issued when a U.S. Court of Appeals upheld the decision to keep cannabis a Schedule I drug.


Compassionate IND program

Despite an official policy denying the medical value of cannabis, the federal government began providing the drug to a limited number of patients through the
Compassionate Investigational New Drug program Expanded access or compassionate use is the use of an unapproved drug or medical device under special forms of investigational new drug applications (IND) or IDE application for devices, outside of a clinical trial, by people with serious or life ...
in 1978. The program was created following a lawsuit filed by Robert Randall, a Washington, D.C. resident who was arrested for cultivating cannabis in 1975. Citing the
glaucoma Glaucoma is a group of eye diseases that result in damage to the optic nerve (or retina) and cause vision loss. The most common type is open-angle (wide angle, chronic simple) glaucoma, in which the drainage angle for fluid within the eye rem ...
that threatened to take his eyesight, Randall employed a
medical necessity Medical necessity is a legal doctrine in the United States related to activities that may be justified as reasonable, necessary, and/or appropriate based on evidence-based clinical standards of care. In contrast, unnecessary health care lacks such ...
defense at trial to justify his use of cannabis. The charges against Randall were dismissed, and as a result of an ensuing petition filed with the FDA, Randall became the first person to receive cannabis from the federal government in 1976. After his supply was cut off in 1978, he filed a lawsuit to have it restored, setting in motion the creation of the Compassionate Investigational New Drug program shortly thereafter. The program allowed patients with serious medical conditions to receive a regular supply of cannabis from the federal government; however, only 13 ended up participating due to the complicated and drawn-out application process involved. The Compassionate IND program was closed to new patients in 1992, due to a flood of new applications from AIDS patients and concerns that the program undercut Bush administration efforts to discourage illegal drug use.
James O. Mason James Ostermann Mason (June 19, 1930 – October 9, 2019) was an American medical doctor and public health administrator. He was the United States Assistant Secretary for Health (ASH) from 1989 to 1993 and the Acting Surgeon General of the Unite ...
, the head of
U.S. Public Health Service The United States Public Health Service (USPHS or PHS) is a collection of agencies of the Department of Health and Human Services concerned with public health, containing nine out of the department's twelve operating divisions. The Assistant ...
, explained that keeping the program in place created the perception that "this stuff can't be so bad", and noted that AIDS patients provided with cannabis would be more likely to engage in unsafe sex. Twenty-eight applications that had recently been approved were rescinded, and only the 13 individuals who were already receiving cannabis were allowed to do so moving forward. All but two of the patients have since died; the surviving two patients are the only persons who currently receive cannabis through the program.


Federal enforcement


Clinton administration

Concurrent with the re-election of
President Bill Clinton William Jefferson Clinton (né Blythe III; born August 19, 1946) is an American politician who served as the 42nd president of the United States from 1993 to 2001. He previously served as governor of Arkansas from 1979 to 1981 and again f ...
in 1996, California voters approved
Proposition 215 Proposition 215, or the Compassionate Use Act of 1996, is a California law permitting the use of medical cannabis despite marijuana's lack of the normal Food and Drug Administration testing for safety and efficacy. It was enacted, on November 5 ...
to legalize the medical use of cannabis, and a similar (but ultimately ineffective) measure was passed in Arizona. In response, the Clinton administration reiterated its firm opposition to the medical use of cannabis, and threatened to revoke the prescription-writing abilities of doctors who recommend or prescribe the drug. Additionally, threats were made to criminally prosecute physicians, and ban them from participating in Medicare and
Medicaid Medicaid in the United States is a federal and state program that helps with healthcare costs for some people with limited income and resources. Medicaid also offers benefits not normally covered by Medicare, including nursing home care and pers ...
. A group of physicians challenged this policy as a violation of
First Amendment First or 1st is the ordinal form of the number one (#1). First or 1st may also refer to: *World record, specifically the first instance of a particular achievement Arts and media Music * 1$T, American rapper, singer-songwriter, DJ, and rec ...
rights, and in September 2000 prevailed in the case '' Conant v. McCaffrey'', which affirmed the right of physicians to recommend (but not prescribe) cannabis. Prior to the ruling, an April 1997
preliminary injunction An injunction is a legal and equitable remedy in the form of a special court order that compels a party to do or refrain from specific acts. ("The court of appeals ... has exclusive jurisdiction to enjoin, set aside, suspend (in whole or in par ...
prevented the administration from taking these actions. Apart from the threatened crackdown on physicians, the administration conducted raids on a number of medical cannabis providers, leading to the filing of civil and criminal charges. At trial, prosecutors were set to easily secure convictions, as jurors could not be informed that the cannabis was for medical use authorized under state law. Drug czar
Barry McCaffrey Barry Richard McCaffrey (born November 17, 1942) is a retired United States Army general and current news commentator, professor and business consultant who served in President Bill Clinton's Cabinet as the Director of the Office of National Dru ...
also railed strongly against the medical use of cannabis – deriding it as "
Cheech & Chong Cheech & Chong are a comedy duo consisting of Cheech Marin and Tommy Chong. The duo found commercial and cultural success in the 1970s and 1980s with their stand-up routines, studio recordings, and feature films, which were based on the hippie a ...
medicine" – and worked behind closed doors to coordinate a media campaign to sway public opinion against approving further initiatives.


Bush administration

Despite previously speaking in support of
states' rights In American political discourse, states' rights are political powers held for the state governments rather than the federal government according to the United States Constitution, reflecting especially the enumerated powers of Congress and the ...
on the issue of medical cannabis,
President George W. Bush George Walker Bush (born July 6, 1946) is an American politician who served as the 43rd president of the United States from 2001 to 2009. A member of the Republican Party, Bush family, and son of the 41st president George H. W. Bush, he ...
escalated efforts to enforce federal law during his 8 years in office, with more than 260 raids conducted and 84 individuals prosecuted by his administration. Heavy use of
paramilitary A paramilitary is an organization whose structure, tactics, training, subculture, and (often) function are similar to those of a professional military, but is not part of a country's official or legitimate armed forces. Paramilitary units carr ...
tactics and gear was common in execution of the raids, along with the frequent use of
civil forfeiture Asset forfeiture or asset seizure is a form of confiscation of assets by the authorities. In the United States, it is a type of criminal-justice financial obligation. It typically applies to the alleged proceeds or instruments of crime. This a ...
, allowing cash and property to be seized without need for criminal conviction. In 2007, the administration began targeting landlords renting to medical cannabis facilities, informing property owners that they faced up to 20 years in prison for violating the "crack house statute" of the CSA, in addition to seizure of their properties. Drug czar John P. Walters was particularly active in opposing the medical use of cannabis, campaigning against initiatives in a number of states in what medical cannabis advocates charged was an inappropriate use of taxpayer dollars and a violation of the
Hatch Act The Hatch Act of 1939, An Act to Prevent Pernicious Political Activities, is a United States federal law. Its main provision prohibits civil service employees in the executive branch of the federal government, except the president and vice pre ...
. During Bush's second term, in June 2005, the Supreme Court ruled in favor of the federal government's ability to enforce federal law in states that have legalized medical cannabis, in the case '' Gonzales v. Raich''.


Obama administration

The
presidency of Barack Obama Barack Obama's tenure as the 44th president of the United States began with his first inauguration on January 20, 2009, and ended on January 20, 2017. A Democrat from Illinois, Obama took office following a decisive victory over Republican n ...
was noted for a strong federal crackdown on medical cannabis during his first term in office, despite early indications that his administration would take a more hands-off approach. During his 2008 campaign for president, Obama expressed support for allowing states to implement their own medical cannabis policies, stating: "I'm not going to be using Justice Department resources to try to circumvent state laws on this issue." These comments were then echoed by the administration in March 2009 when Attorney General
Eric Holder Eric Himpton Holder Jr. (born January 21, 1951) is an American lawyer who served as the 82nd Attorney General of the United States from 2009 to 2015. Holder, serving in the administration of President Barack Obama, was the first African America ...
stated that only medical cannabis providers "who violate both federal and state law" would be targeted for prosecution. Additionally, an October 2009 memo from Deputy Attorney General David Ogden laid out further guidelines for federal enforcement that largely affirmed this hands-off approach. Despite these pronounced intentions of lessened enforcement from the Obama administration, however, an increasing number of raids were conducted during Obama's first two years in office, surpassing even the Bush administration in frequency. Federal enforcement efforts against medical cannabis were further escalated in early 2011, as a campaign of coercing state and local governments was initiated by the Justice Department. Letters were sent out by U.S. Attorneys to a number of state and city officials, threatening to criminally prosecute these individuals if the implementation of new medical cannabis laws moved forward. Some letters also threatened prosecution of state employees, or even the seizure of state administrative buildings (such as those used for the processing of medical cannabis licenses). In response to outcry and requests for clarification from numerous officials, a new memo was issued by Deputy Attorney General
James M. Cole James Michael Cole (born May 2, 1952) is an American attorney who served as United States Deputy Attorney General from December 29, 2010 to January 8, 2015. He was first installed as Deputy Attorney General following a recess appointment by Presid ...
in June 2011. The Cole memo insisted that the 2009 Ogden memo was being adhered to, and that the Ogden memo's protections applied only to individual patients and not commercial operations. As the raids continued following release of the Cole memo, U.S. Attorneys sent out hundreds more letters over the next two years, threatening landlords with criminal prosecution and seizure of property for renting to medical cannabis providers. By June 2013, the total cost of the Obama administration crackdown on medical cannabis had climbed to $289 million, surpassing the previous 8 years of the Bush administration by $100 million. And the number of raids conducted during Obama's first 4 1/2 years had reached 270, in contrast to 260 during Bush's 8 years. Early in President Obama's second term, in August 2013, the Justice Department issued a new Cole memo setting forth the conditions under which federal law would be enforced. The memo was prompted in particular by the recent legalization of non-medical cannabis in Washington and Colorado, but also addressed enforcement in medical cannabis states. Regarding the medical use of cannabis, the memo was considered to take a significantly more deferential approach towards the states (compared to the 2011 Cole memo), similar in nature to how the 2009 Ogden memo was originally widely interpreted. Federal enforcement efforts were further scaled back with the enactment of the
Rohrabacher–Farr amendment The Rohrabacher–Farr amendment (also known as the Rohrabacher–Blumenauer amendment) is legislation first introduced by U.S. Rep. Maurice Hinchey in 2001, prohibiting the Justice Department from spending funds to interfere with the implementation ...
in December 2014, although the Justice Department initially continued with a number of prosecutions until a pair of court rulings determined it was interpreting the amendment incorrectly.


Rohrabacher–Farr amendment

On December 16, 2014, a landmark victory was achieved for medical cannabis at the federal level with the signing into law of the
Rohrabacher–Farr amendment The Rohrabacher–Farr amendment (also known as the Rohrabacher–Blumenauer amendment) is legislation first introduced by U.S. Rep. Maurice Hinchey in 2001, prohibiting the Justice Department from spending funds to interfere with the implementation ...
. Initially introduced by Rep.
Maurice Hinchey Maurice Dunlea Hinchey (October 27, 1938 – November 22, 2017) was an American politician who served as a U.S. Representative from New York and was a member of the Democratic Party. He retired at the end of his term in January 2013 after 20 ...
in 2001, the amendment prohibits the Justice Department from spending funds to interfere with the implementation of state medical cannabis laws. It failed 152–273 upon its initial vote in 2003, and was defeated five more times over the next decade until it passed the House by a 219–189 margin on May 30, 2014, as an attachment to the CJS Appropriations bill for fiscal year 2015. It did not receive a vote in the Senate, but was inserted into the $1.1 trillion "cromnibus" spending bill during final negotiations, which became law with President Obama's signature on December 16, 2014. The Rohrabacher–Farr amendment passed the House by an even larger margin (242–186) in June 2015, then won approval in a 21–9 Senate Appropriations Committee vote, and was signed into law as part of the FY 2016 omnibus appropriations bill on December 18, 2015. The amendment was subsequently included in a series of spending bills with the most recent extension effective through December 16, 2022. Although state medical cannabis programs are protected by the amendment, it does not change the legal status of cannabis, and must be renewed each fiscal year in order to remain in effect. The Justice Department has also interpreted the amendment in a manner vastly different from the authors' intent, which it has used to justify a number of raids and prosecutions after the law's enactment. U.S. District Judge
Charles Breyer Charles Roberts Breyer (born November 3, 1941) is an American attorney and jurist serving as a Senior United States district judge of the United States District Court for the Northern District of California. Breyer served as chairman of the Uni ...
ruled against the Justice Department in October 2015, however, stating that the DOJ interpretation "defies language and logic" and "tortures the plain meaning of the statute", and was "counterintuitive and opportunistic". The
Ninth Circuit Court of Appeals The United States Court of Appeals for the Ninth Circuit (in case citations, 9th Cir.) is the U.S. federal court of appeals that has appellate jurisdiction over the U.S. district courts in the following federal judicial districts: * District o ...
similarly rejected the DOJ's arguments in an August 2016 ruling.


State policy


Early laws (late 1970s and early 80s)

Due to increasing public awareness of the medical benefits of cannabis, and in anticipation of forthcoming changes to federal policy, a number of states passed laws in the late 1970s and early 1980s addressing the medical use of cannabis.
New Mexico ) , population_demonym = New Mexican ( es, Neomexicano, Neomejicano, Nuevo Mexicano) , seat = Santa Fe , LargestCity = Albuquerque , LargestMetro = Tiguex , OfficialLang = None , Languages = English, Spanish ( New Mexican), Navajo, Ker ...
was the first to do so in 1978, and by the end of 1982 over thirty states had followed suit. The majority of these laws sought to provide cannabis through federally-approved research programs administered by the states, using cannabis supplied by the
National Institute on Drug Abuse The National Institute on Drug Abuse (NIDA) is a United States federal government research institute whose mission is to "advance science on the causes and consequences of drug use and addiction and to apply that knowledge to improve individual a ...
. Only seven states ended up implementing the programs, however, due to the large bureaucratic and regulatory obstacles imposed by the federal government. Other states passed legislation allowing doctors to prescribe cannabis, or reclassifying cannabis in a state's internal drug scheduling system. These laws were largely ineffectual though, due to the continued prohibition of medical cannabis at the federal level. A few states passed laws affirming the right of individuals to present a
medical necessity Medical necessity is a legal doctrine in the United States related to activities that may be justified as reasonable, necessary, and/or appropriate based on evidence-based clinical standards of care. In contrast, unnecessary health care lacks such ...
defense at trial. By the mid-80s, however, efforts to pass new medical cannabis laws had ground to a halt, and a number of existing laws were either repealed or allowed to expire.


California (early and mid-1990s)

Medical cannabis advocates began to gain ground in the early 1990s with a series of legislative achievements in the state of California. Proposition P was approved by 79% of
San Francisco San Francisco (; Spanish language, Spanish for "Francis of Assisi, Saint Francis"), officially the City and County of San Francisco, is the commercial, financial, and cultural center of Northern California. The city proper is the List of Ca ...
voters in November 1991, calling on state lawmakers to pass legislation allowing the medical use of cannabis. Additionally, the city board of supervisors passed a resolution in August 1992 urging the police commission and district attorney to "make lowest priority the arrest or prosecution of those involved in the possession or cultivation of annabisfor medicinal purposes" and to "allow a letter from a treating physician to be used as prima facia evidence that marijuana can alleviate the pain and suffering of that patient's medical condition". The resolution enabled the open sale of cannabis to AIDS patients and others within the city, most notably through the
San Francisco Cannabis Buyers Club The San Francisco Cannabis Buyers Club was the first public marijuana dispensary in the United States. History The San Francisco Cannabis Buyers Club was founded in 1994. The location of the dispensary was previously an existing cannabis collecti ...
which was operated by medical cannabis activist
Dennis Peron Dennis Robert Peron (April 8, 1945 – January 27, 2018) was an American activist and businessman who became a leader in the movement for the legalization of cannabis throughout the 1990s. He influenced many in California and thus changed ...
(who spearheaded Proposition P and later the statewide Proposition 215). Similar clubs appeared outside San Francisco in the ensuing years as other cities passed legislation to support the medical use of cannabis. The
Wo/Men's Alliance for Medical Marijuana Wo/Men's Alliance for Medical Marijuana (WAMM) is a not-for-profit medicinal cannabis dispensing collective located in Santa Cruz, California. WAMM was founded in 1993 by Valerie Leveroni Corral and her then-husband Michael Corral. Valerie Corral ...
was founded in 1993 after 75% of Santa Cruz voters approved Measure A in November 1992.Alt URL
/ref> And the
Oakland Cannabis Buyers' Cooperative The Oakland Cannabis Buyers' Cooperative (OCBC) is a California organization whose mission is to "provide seriously ill patients with a safe and reliable source of medical cannabis information and patient support." In order to become a member, a pe ...
was founded in 1995 shortly before the city council passed multiple medical cannabis resolutions. Following the lead of San Francisco and other cities in California, state lawmakers passed Senate Joint Resolution 8 in 1993, a non-binding measure calling on the federal government to enact legislation allowing physicians to prescribe cannabis. In 1994, Senate Bill 1364 was approved by state legislators, to reclassify cannabis as a Schedule II drug at the state level. And Assembly Bill 1529 was approved in 1995, to create a medical necessity defense for patients using cannabis with a physician's recommendation, for treatment of AIDS, cancer, glaucoma, and multiple sclerosis. Both SB 1364 and AB 1529 were vetoed by Governor
Pete Wilson Peter Barton Wilson (born August 23, 1933) is an American attorney and politician who served as the 36th governor of California from 1991 to 1999. A member of the Republican Party, he also served as a United States senator from California bet ...
, however, paving the way for the passage of Proposition 215 in 1996.


Modern laws (1996 to present)

Frustrated by vetoes of medical cannabis bills in successive years, medical cannabis advocates in California took the issue directly to the voters, collecting 775,000 signatures for qualification of a statewide
ballot initiative In political science, an initiative (also known as a popular initiative or citizens' initiative) is a means by which a petition signed by a certain number of registered voters can force a government to choose either to enact a law or hold a pu ...
in 1996.
Proposition 215 Proposition 215, or the Compassionate Use Act of 1996, is a California law permitting the use of medical cannabis despite marijuana's lack of the normal Food and Drug Administration testing for safety and efficacy. It was enacted, on November 5 ...
– the Compassionate Use Act of 1996 – was subsequently approved with 56% of the vote, legalizing the use, possession, and cultivation of cannabis by patients with a physician's recommendation, for treatment of cancer, anorexia, AIDS, chronic pain, spasticity, glaucoma, arthritis, migraine, or "any other illness for which marijuana provides relief". The law also allowed patient
caregiver A caregiver or carer is a paid or unpaid member of a person's social network who helps them with activities of daily living. Since they have no specific professional training, they are often described as informal caregivers. Caregivers most commo ...
s to cultivate cannabis, and urged lawmakers to facilitate the "safe and affordable distribution of marijuana". Also in 1996, 65% of
Arizona Arizona ( ; nv, Hoozdo Hahoodzo ; ood, Alĭ ṣonak ) is a state in the Southwestern United States. It is the 6th largest and the 14th most populous of the 50 states. Its capital and largest city is Phoenix. Arizona is part of the Fou ...
voters approved Proposition 200, a drug policy reform initiative containing a provision allowing physicians to prescribe cannabis. The medical use provision was then essentially repealed by state legislators a few months later, but the change was rejected by voters in a 1998
veto referendum A popular referendum (also known, depending on jurisdiction, as citizens' veto, people's veto, veto referendum, citizen referendum, abrogative referendum, rejective referendum, suspensive referendum or statute referendum)Maija SetäläReferendum ...
. Ultimately the medical use provision was ineffective, however, due to language that created significant conflict with federal law (use of the word "prescribe" instead of "recommend"). In 1998, medical cannabis initiatives were voted on in the states of
Washington Washington commonly refers to: * Washington (state), United States * Washington, D.C., the capital of the United States ** A metonym for the federal government of the United States ** Washington metropolitan area, the metropolitan area centered o ...
,
Oregon Oregon () is a U.S. state, state in the Pacific Northwest region of the Western United States. The Columbia River delineates much of Oregon's northern boundary with Washington (state), Washington, while the Snake River delineates much of it ...
,
Alaska Alaska ( ; russian: Аляска, Alyaska; ale, Alax̂sxax̂; ; ems, Alas'kaaq; Yup'ik: ''Alaskaq''; tli, Anáaski) is a state located in the Western United States on the northwest extremity of North America. A semi-exclave of the U.S., ...
, and
Nevada Nevada ( ; ) is a U.S. state, state in the Western United States, Western region of the United States. It is bordered by Oregon to the northwest, Idaho to the northeast, California to the west, Arizona to the southeast, and Utah to the east. N ...
– all of which passed. Also, in
Washington, D.C. ) , image_skyline = , image_caption = Clockwise from top left: the Washington Monument and Lincoln Memorial on the National Mall, United States Capitol, Logan Circle, Jefferson Memorial, White House, Adams Morgan, ...
,
Initiative 59 Initiative 59 was a 1998 ballot initiative in Washington, D.C., that sought to legalize medical cannabis. The short title of the initiative was "Legalization of Marijuana for Medical Treatment Initiative of 1998". Though the initiative passed wi ...
to legalize the medical use of cannabis passed with 69% of the vote, but a series of amendments introduced by Rep.
Bob Barr Robert Laurence Barr Jr. (born November 5, 1948) is an American attorney and politician. He served as a federal prosecutor and as a United States House of Representatives, Congressman. He represented Georgia's 7th congressional district as a Re ...
and approved by Congress prevented its implementation for over a decade. The initial Barr amendment was enacted prior to the November 1998 election but after ballots had been printed, thereby allowing D.C. residents to vote on the initiative but preventing the results from being made public. The amendment was challenged by the
American Civil Liberties Union The American Civil Liberties Union (ACLU) is a nonprofit organization founded in 1920 "to defend and preserve the individual rights and liberties guaranteed to every person in this country by the Constitution and laws of the United States". T ...
on grounds that it violated First Amendment rights, and in September 1999 U.S. District Judge
Richard W. Roberts Richard Warren Roberts (born 1953) is an inactive United States federal judge, Senior United States district judge of the United States District Court for the District of Columbia. Early life Roberts was born in New York City, New York (state), ...
agreed, overturning the Barr amendment. Rep. Barr then introduced a similar amendment which became law in November 1999, setting off a long legal battle until finally in December 2009 the Barr amendment was removed from the annual D.C. appropriations bill, allowing the original 1998 ballot initiative to move forward. Following the approval of several ballot measures in 1998,
Maine Maine () is a state in the New England and Northeastern regions of the United States. It borders New Hampshire to the west, the Gulf of Maine to the southeast, and the Canadian provinces of New Brunswick and Quebec to the northeast and north ...
voters passed a medical cannabis initiative in 1999 that was expanded by both state legislature and another ballot initiative in subsequent years. In 2000, medical cannabis initiatives were passed in the states of
Colorado Colorado (, other variants) is a state in the Mountain West subregion of the Western United States. It encompasses most of the Southern Rocky Mountains, as well as the northeastern portion of the Colorado Plateau and the western edge of t ...
and
Nevada Nevada ( ; ) is a U.S. state, state in the Western United States, Western region of the United States. It is bordered by Oregon to the northwest, Idaho to the northeast, California to the west, Arizona to the southeast, and Utah to the east. N ...
, with Nevada's initiative passing for a second consecutive election as required to amend the state's constitution. Also in 2000,
Hawaii Hawaii ( ; haw, Hawaii or ) is a state in the Western United States, located in the Pacific Ocean about from the U.S. mainland. It is the only U.S. state outside North America, the only state that is an archipelago, and the only stat ...
became the first state to legalize medical cannabis through an act of state legislature. In the following years, medical cannabis was legalized by ballot measure in
Montana Montana () is a state in the Mountain West division of the Western United States. It is bordered by Idaho to the west, North Dakota and South Dakota to the east, Wyoming to the south, and the Canadian provinces of Alberta, British Columbi ...
(2004),
Michigan Michigan () is a state in the Great Lakes region of the upper Midwestern United States. With a population of nearly 10.12 million and an area of nearly , Michigan is the 10th-largest state by population, the 11th-largest by area, and the ...
(2008),
Arizona Arizona ( ; nv, Hoozdo Hahoodzo ; ood, Alĭ ṣonak ) is a state in the Southwestern United States. It is the 6th largest and the 14th most populous of the 50 states. Its capital and largest city is Phoenix. Arizona is part of the Fou ...
(2010),
Massachusetts Massachusetts (Massachusett language, Massachusett: ''Muhsachuweesut assachusett writing systems, məhswatʃəwiːsət'' English: , ), officially the Commonwealth of Massachusetts, is the most populous U.S. state, state in the New England ...
(2012),
Arkansas Arkansas ( ) is a landlocked state in the South Central United States. It is bordered by Missouri to the north, Tennessee and Mississippi to the east, Louisiana to the south, and Texas and Oklahoma to the west. Its name is from the Osage ...
(2016),
Florida Florida is a state located in the Southeastern region of the United States. Florida is bordered to the west by the Gulf of Mexico, to the northwest by Alabama, to the north by Georgia, to the east by the Bahamas and Atlantic Ocean, and to ...
(2016),
North Dakota North Dakota () is a U.S. state in the Upper Midwest, named after the Native Americans in the United States, indigenous Dakota people, Dakota Sioux. North Dakota is bordered by the Canadian provinces of Saskatchewan and Manitoba to the north a ...
(2016),
Oklahoma Oklahoma (; Choctaw language, Choctaw: ; chr, ᎣᎧᎳᎰᎹ, ''Okalahoma'' ) is a U.S. state, state in the South Central United States, South Central region of the United States, bordered by Texas on the south and west, Kansas on the nor ...
(2018),
Missouri Missouri is a U.S. state, state in the Midwestern United States, Midwestern region of the United States. Ranking List of U.S. states and territories by area, 21st in land area, it is bordered by eight states (tied for the most with Tennessee ...
(2018),
Utah Utah ( , ) is a state in the Mountain West subregion of the Western United States. Utah is a landlocked U.S. state bordered to its east by Colorado, to its northeast by Wyoming, to its north by Idaho, to its south by Arizona, and to it ...
(2018), and
South Dakota South Dakota (; Sioux language, Sioux: , ) is a U.S. state in the West North Central states, North Central region of the United States. It is also part of the Great Plains. South Dakota is named after the Lakota people, Lakota and Dakota peo ...
(2020), and by an act of state legislature in
Vermont Vermont () is a state in the northeast New England region of the United States. Vermont is bordered by the states of Massachusetts to the south, New Hampshire to the east, and New York to the west, and the Canadian province of Quebec to ...
(2004),
Rhode Island Rhode Island (, like ''road'') is a U.S. state, state in the New England region of the Northeastern United States. It is the List of U.S. states by area, smallest U.S. state by area and the List of states and territories of the United States ...
(2006),
New Mexico ) , population_demonym = New Mexican ( es, Neomexicano, Neomejicano, Nuevo Mexicano) , seat = Santa Fe , LargestCity = Albuquerque , LargestMetro = Tiguex , OfficialLang = None , Languages = English, Spanish ( New Mexican), Navajo, Ker ...
(2007),
New Jersey New Jersey is a state in the Mid-Atlantic and Northeastern regions of the United States. It is bordered on the north and east by the state of New York; on the east, southeast, and south by the Atlantic Ocean; on the west by the Delaware ...
(2010),
Delaware Delaware ( ) is a state in the Mid-Atlantic region of the United States, bordering Maryland to its south and west; Pennsylvania to its north; and New Jersey and the Atlantic Ocean to its east. The state takes its name from the adjacent Del ...
(2011),
Connecticut Connecticut () is the southernmost state in the New England region of the Northeastern United States. It is bordered by Rhode Island to the east, Massachusetts to the north, New York to the west, and Long Island Sound to the south. Its cap ...
(2012),
New Hampshire New Hampshire is a U.S. state, state in the New England region of the northeastern United States. It is bordered by Massachusetts to the south, Vermont to the west, Maine and the Gulf of Maine to the east, and the Canadian province of Quebec t ...
(2013),
Illinois Illinois ( ) is a U.S. state, state in the Midwestern United States, Midwestern United States. Its largest metropolitan areas include the Chicago metropolitan area, and the Metro East section, of Greater St. Louis. Other smaller metropolita ...
(2013),
Maryland Maryland ( ) is a state in the Mid-Atlantic region of the United States. It shares borders with Virginia, West Virginia, and the District of Columbia to its south and west; Pennsylvania to its north; and Delaware and the Atlantic Ocean to ...
(2014),
Minnesota Minnesota () is a state in the upper midwestern region of the United States. It is the 12th largest U.S. state in area and the 22nd most populous, with over 5.75 million residents. Minnesota is home to western prairies, now given over to ...
(2014),
New York New York most commonly refers to: * New York City, the most populous city in the United States, located in the state of New York * New York (state), a state in the northeastern United States New York may also refer to: Film and television * '' ...
(2014),
Pennsylvania Pennsylvania (; ( Pennsylvania Dutch: )), officially the Commonwealth of Pennsylvania, is a state spanning the Mid-Atlantic, Northeastern, Appalachian, and Great Lakes regions of the United States. It borders Delaware to its southeast, ...
(2016),
Louisiana Louisiana , group=pronunciation (French: ''La Louisiane'') is a state in the Deep South and South Central regions of the United States. It is the 20th-smallest by area and the 25th most populous of the 50 U.S. states. Louisiana is borde ...
(2016),
Ohio Ohio () is a state in the Midwestern region of the United States. Of the fifty U.S. states, it is the 34th-largest by area, and with a population of nearly 11.8 million, is the seventh-most populous and tenth-most densely populated. The sta ...
(2016),
West Virginia West Virginia is a state in the Appalachian, Mid-Atlantic and Southeastern regions of the United States.The Census Bureau and the Association of American Geographers classify West Virginia as part of the Southern United States while the Bur ...
(2017),
Virginia Virginia, officially the Commonwealth of Virginia, is a state in the Mid-Atlantic and Southeastern regions of the United States, between the Atlantic Coast and the Appalachian Mountains. The geography and climate of the Commonwealth ar ...
(2020),
Alabama (We dare defend our rights) , anthem = "Alabama (state song), Alabama" , image_map = Alabama in United States.svg , seat = Montgomery, Alabama, Montgomery , LargestCity = Huntsville, Alabama, Huntsville , LargestCounty = Baldwin County, Al ...
(2021), and
Mississippi Mississippi () is a state in the Southeastern region of the United States, bordered to the north by Tennessee; to the east by Alabama; to the south by the Gulf of Mexico; to the southwest by Louisiana; and to the northwest by Arkansas. Miss ...
(2022). Eighteen states have legalized by ballot measure and 19 have by state legislature, for a total of 37 states according to the
National Conference of State Legislatures The National Conference of State Legislatures (NCSL), established in 1975, is a "nonpartisan public officials’ association composed of sitting state legislators" from the states, territories and commonwealths of the United States. Background ...
. The U.S. territories of
Guam Guam (; ch, Guåhan ) is an organized, unincorporated territory of the United States in the Micronesia subregion of the western Pacific Ocean. It is the westernmost point and territory of the United States (reckoned from the geographic cent ...
(2014 – ballot measure),
Puerto Rico Puerto Rico (; abbreviated PR; tnq, Boriken, ''Borinquen''), officially the Commonwealth of Puerto Rico ( es, link=yes, Estado Libre Asociado de Puerto Rico, lit=Free Associated State of Puerto Rico), is a Caribbean island and Unincorporated ...
(2015 – executive order), the
Northern Mariana Islands The Northern Mariana Islands, officially the Commonwealth of the Northern Mariana Islands (CNMI; ch, Sankattan Siha Na Islas Mariånas; cal, Commonwealth Téél Falúw kka Efáng llól Marianas), is an unincorporated territory and commonw ...
(2018 – legislature), and the U.S. Virgin Islands (2019 – legislature) have also legalized the medical use of cannabis.


Low-THC, high-CBD laws

In addition to states that have passed comprehensive medical cannabis laws, a number of states have passed more restrictive laws that limit the allowable concentration of
tetrahydrocannabinol Tetrahydrocannabinol (THC) is the principal psychoactive constituent of cannabis and one of at least 113 total cannabinoids identified on the plant. Although the chemical formula for THC (C21H30O2) describes multiple isomers, the term ''THC'' ...
(THC), the main
psychoactive A psychoactive drug, psychopharmaceutical, psychoactive agent or psychotropic drug is a chemical substance, that changes functions of the nervous system, and results in alterations in perception, mood, consciousness, cognition or behavior. Th ...
component of cannabis. The primary purpose of these laws is to allow for the use of
cannabidiol Cannabidiol (CBD) is a phytocannabinoid discovered in 1940. It is one of 113 identified cannabinoids in cannabis plants, along with tetrahydrocannabinol (THC), and accounts for up to 40% of the plant's extract. , clinical research on CBD incl ...
(CBD), a non-psychoactive
cannabinoid Cannabinoids () are several structural classes of compounds found in the cannabis plant primarily and most animal organisms (although insects lack such receptors) or as synthetic compounds. The most notable cannabinoid is the phytocannabinoid tet ...
that has been shown to be effective in the treatment of seizure disorders, particularly in children. The use of CBD to treat seizure disorders gained increased attention with a number of media reports in 2012 and 2013, and by the end of 2015 sixteen states had "low-THC, high-CBD" laws in effect. Currently 11 states are considered to have low-THC, high-CBD laws. These laws vary in THC content allowed all the way up to 5% in Georgia and Kansas.


Research

As a Schedule I drug in the U.S.,
clinical research Clinical research is a branch of healthcare science that determines the safety and effectiveness ( efficacy) of medications, devices, diagnostic products and treatment regimens intended for human use. These may be used for prevention, treatm ...
on cannabis must be approved by the
Food and Drug Administration The United States Food and Drug Administration (FDA or US FDA) is a List of United States federal agencies, federal agency of the United States Department of Health and Human Services, Department of Health and Human Services. The FDA is respon ...
, and a license (also referred to as a "registration") must be obtained from the
Drug Enforcement Administration The Drug Enforcement Administration (DEA; ) is a Federal law enforcement in the United States, United States federal law enforcement agency under the U.S. Department of Justice tasked with combating drug trafficking and distribution within th ...
specific to conducting research on Schedule I drugs. The petition to the FDA is submitted in the form of an Investigational New Drug application, which the FDA has 30 days to respond to. DEA research registrations are issued for Schedule I and Schedule II–V drugs, with the Schedule I registration mandating stricter compliance requirements such as the manner in which substances are stored and secured. The DEA has 60 days to respond to registration applications as required by the 2022
Medical Marijuana and Cannabidiol Research Expansion Act The Medical Marijuana and Cannabidiol Research Expansion Act is an Act of Congress allowing medical research on cannabis. The act is "the first standalone marijuana-related bill approved by both chambers of the United States Congress". History Th ...
. Prior to the act, researchers reported that the application process sometimes took over a year. In addition to FDA approval and DEA registration, other requirements have been imposed for cannabis research that do not exist for any other drug, which has had a significant effect in limiting the amount of research conducted. One such requirement was established in 1999 when it was mandated that all proposed research be submitted to the
U.S. Public Health Service The United States Public Health Service (USPHS or PHS) is a collection of agencies of the Department of Health and Human Services concerned with public health, containing nine out of the department's twelve operating divisions. The Assistant ...
for approval. This was of particular burden to researchers as there was no timeline in which PHS was required to respond, with some reviews taking years to complete. In June 2015 the PHS review was eliminated, however, to better streamline the process for approving medical cannabis research. Prior to 2021, clinical research on cannabis also required the approval of the
National Institute on Drug Abuse The National Institute on Drug Abuse (NIDA) is a United States federal government research institute whose mission is to "advance science on the causes and consequences of drug use and addiction and to apply that knowledge to improve individual a ...
. The stated mission of NIDA is to support research on the causes, consequences, prevention, and treatment of drug abuse and drug addiction, and not the medicinal uses of drugs. Consequently, many studies on the therapeutic benefits of cannabis were either denied or altered to comply with the limited scope and mission of NIDA. There is also no timeline in which NIDA is required to respond to proposals (as with the PHS review), which has resulted in delays in getting research approved ranging from months to years. Additionally, the cannabis provided by NIDA has been criticized as being inferior to that which is commonly used by medical cannabis patients in states where it is legal. Criticisms of NIDA-supplied cannabis include high amounts of stems and seeds, high mold and yeast levels, low THC content, and low diversity of strains available.


NIDA monopoly

From the agency's 1974 inception until 2021, NIDA was the sole provider of cannabis for research purposes in the U.S., contracting with the
University of Mississippi The University of Mississippi (byname Ole Miss) is a public research university that is located adjacent to Oxford, Mississippi, and has a medical center in Jackson. It is Mississippi's oldest public university and its largest by enrollment. ...
for cultivation of the cannabis. The monopoly was maintained by the refusal of the Drug Enforcement Administration to issue additional licenses for the cultivation and distribution of cannabis, which the DEA said was consistent with the terms of the U.N.
Single Convention on Narcotic Drugs The Single Convention on Narcotic Drugs, 1961 (Single Convention, 1961 Convention, or C61) is an international treaty that controls activities (cultivation, production, supply, trade, transport) of specific narcotic drugs and lays down a syst ...
that was ratified in 1961. Others disputed this interpretation of the treaty, however (including the U.S. State Department), and the DEA's interpretation was not consistent with the fact that multiple licenses have been issued for the production of other Schedule I drugs. The DEA also cited the possibility of diversion from cultivation facilities as justification for not issuing additional licenses.


Craker application

Critics of the former NIDA monopoly have pointed to the case of
University of Massachusetts Amherst The University of Massachusetts Amherst (UMass Amherst, UMass) is a public research university in Amherst, Massachusetts and the sole public land-grant university in Commonwealth of Massachusetts. Founded in 1863 as an agricultural college, it ...
professor
Lyle Craker Lyle E. Craker was a Professor in the Department of Plant, Soil and Insect Sciences at the University of Massachusetts Amherst. Since 2001, Craker has been trying to obtain a permit from the United States Drug Enforcement Administration (DEA) to gr ...
as an example of the DEA's undue resistance to granting additional cultivation licenses. Professor Craker's endeavor to obtain a license began in June 2001, when he submitted an application to the DEA, which, later in 2001, the DEA claimed to have lost. After a photocopy was resubmitted, the DEA rejected the application in February 2002 because it did not have an original signature. In July 2002, the original application was returned to Professor Craker unprocessed, with a date stamp showing it had been received in June 2001. The application was then resubmitted in August 2002, upon which the DEA confirmed receipt. On July 24, 2003, a notice regarding Craker's application was filed in the
Federal Register The ''Federal Register'' (FR or sometimes Fed. Reg.) is the official journal of the federal government of the United States that contains government agency rules, proposed rules, and public notices. It is published every weekday, except on feder ...
, with a
public comment In public relations and communication science, publics are groups of individual people, and the public (a.k.a. the general public) is the totality of such groupings. This is a different concept to the sociological concept of the ''Öffentlichkei ...
period ending on September 23, 2003. In October 2003, U.S. Senators
John Kerry John Forbes Kerry (born December 11, 1943) is an American attorney, politician and diplomat who currently serves as the first United States special presidential envoy for climate. A member of the Forbes family and the Democratic Party (Unite ...
and
Ted Kennedy Edward Moore Kennedy (February 22, 1932 – August 25, 2009) was an American lawyer and politician who served as a United States senator from Massachusetts for almost 47 years, from 1962 until his death in 2009. A member of the Democratic ...
wrote a letter to DEA Administrator
Karen Tandy Karen Pomerantz Tandy is an American attorney and law enforcement official who served as the administrator of the Drug Enforcement Administration from 2003 to 2007. She was nominated by President George W. Bush and confirmed by the U.S. Senate on ...
expressing support for granting Professor Craker a license. On December 10, 2004, however, following a lawsuit filed over unreasonable delay in responding to the application, the DEA rejected Craker's application. Professor Craker then filed another lawsuit in response to the rejection, and also requested a hearing on the matter from a DEA Administrative Law Judge, which was granted. On February 12, 2007, after almost two years of extensive public testimony and evidence gathering, DEA Administrative Law Judge Ellen Bittner issued an 87-page opinion in favor of granting Professor Craker a license. Additionally, 45 members of Congress wrote to DEA Administrator Karen Tandy in September 2007 urging that the decision be upheld. In January 2009, however, acting DEA Administrator
Michele Leonhart Michele Marie Leonhart (born February 27, 1956) is an American career law enforcement officer and the former Administrator of the Drug Enforcement Administration (DEA). After the resignation of Administrator Karen P. Tandy in the fall of 2007, L ...
rejected the recommended ruling of Judge Bittner and declined to issue a license. In response, 16 members of Congress wrote to Attorney General
Eric Holder Eric Himpton Holder Jr. (born January 21, 1951) is an American lawyer who served as the 82nd Attorney General of the United States from 2009 to 2015. Holder, serving in the administration of President Barack Obama, was the first African America ...
in February 2009, asking that the Leonhart ruling be withdrawn. An additional letter was sent by Sens. John Kerry and Ted Kennedy in April 2009. The ruling was upheld by Leonhart in an August 2011 decision, however, and again by the
First Circuit Court of Appeals The United States Court of Appeals for the First Circuit (in case citations, 1st Cir.) is a federal court with appellate jurisdiction over the district courts in the following districts: * District of Maine * District of Massachusetts * ...
in April 2013.


End of monopoly

On August 11, 2016, the DEA announced intention to issue additional licenses for the cultivation of research-grade cannabis, in order to end the decades-long monopoly held by NIDA and the University of Mississippi. In August 2019, following inquiries from Congress about the status of the licenses, the DEA clarified that new regulations needed to be developed before the approval of applications could proceed. In May 2021, the DEA announced that it had notified an unspecified number of cultivators that they had been granted preliminary approval for a license. As of August 2022 the DEA lists seven organizations that have active licenses to cultivate cannabis.


Advocacy


Support


Organizations

Americans for Safe Access Americans for Safe Access (ASA), based in Washington, D.C., is a member-based organization working to ensure safe and legal access to cannabis for therapeutic uses and research. Americans for Safe Access works in partnership with local, state, an ...
is the leading advocacy group in the U.S. dedicated to medical cannabis policy reform. Founded in 2002 by medical cannabis patient Steph Sherer, it has grown to over 100,000 members in 50 states. Other groups include the
National Organization for the Reform of Marijuana Laws The National Organization for the Reform of Marijuana Laws (NORML ) is a social welfare organization based in Washington, D.C., that advocates for the reform of marijuana laws in the United States regarding both medical and non-medical use. Acc ...
,
Marijuana Policy Project The Marijuana Policy Project (MPP) is the largest organization working solely on marijuana policy reform in the United States in terms of its budget, number of members, and staff. Its stated aims are to: (1) increase public support for non-pu ...
, and
Drug Policy Alliance The Drug Policy Alliance (DPA) is a New York City–based nonprofit organization that seeks to advance policies that “reduce the harms of both drug use and drug prohibition, and to promote the sovereignty of individuals over their minds and b ...
, although these focus more broadly on policy reform regarding both medical and non-medical use. Medical organizations that have issued statements in support of allowing patient access to medical cannabis include the
American Nurses Association The American Nurses Association (ANA) is a 501(c)(6) professional organization to advance and protect the profession of nursing. It started in 1896 as the Nurses Associated Alumnae and was renamed the American Nurses Association in 1911. It is ba ...
, American Public Health Association,
American Medical Student Association The American Medical Student Association (AMSA), founded in 1950 and based in Washington, D.C., is an independent association of physicians-in-training in the United States. AMSA is a student-governed national organization.They have a membership ...
,
National Multiple Sclerosis Society The National Multiple Sclerosis Society (NMSS) is a nonprofit organization that was founded in New York City as the Association for Advancement of Research on Multiple Sclerosis on March 11, 1946 by Sylvia Lawry. Ms. Lawry was a lawyer looking fo ...
,
Epilepsy Foundation The Epilepsy Foundation, also Epilepsy Foundation of America (EFA), is a non-profit national foundation, headquartered in Bowie, Maryland, dedicated to the welfare of people with epilepsy and seizure disorders. The foundation was established in 196 ...
,
Leukemia & Lymphoma Society The Leukemia & Lymphoma Society (LLS), a 501(c)(3) charitable organization founded in 1949, is the largest voluntary health organization dedicated to fighting blood cancer in the world. The LLS's mission is to cure leukemia, lymphoma, Hodgkin's l ...
,
National Women's Health Network The National Women's Health Network (NWHN) is a non-profit women's health advocacy organization located in Washington, D.C. It was founded in 1975 by Barbara Seaman, Alice Wolfson, Belita Cowan, Mary Howell, and Phyllis Chesler. The stated missi ...
,
Gay and Lesbian Medical Association GLMA: Health Professionals Advancing LGBTQ Equality (GLMA) is an international organization of approximately 1,000 LGBT healthcare professionals and students of all disciplines. Its members include physicians, advanced practice nurses, physician ...
, and several AIDS advocacy organizations. Religious denominations in the U.S. that have voiced support for allowing the medical use of cannabis include the Episcopal Church,
Presbyterian Church (USA) The Presbyterian Church (USA), abbreviated PC(USA), is a mainline Protestant denomination in the United States. It is the largest Presbyterian denomination in the US, and known for its liberal stance on doctrine and its ordaining of women and ...
,
United Church of Christ The United Church of Christ (UCC) is a mainline Protestant Christian denomination based in the United States, with historical and confessional roots in the Congregational, Calvinist, Lutheran, and Anabaptist traditions, and with approximately 4 ...
,
United Methodist Church The United Methodist Church (UMC) is a worldwide mainline Protestant denomination based in the United States, and a major part of Methodism. In the 19th century, its main predecessor, the Methodist Episcopal Church, was a leader in evangelical ...
,
Union for Reform Judaism The Union for Reform Judaism (URJ), known as the Union of American Hebrew Congregations (UAHC) until 2003, founded in 1873 by Rabbi Isaac Mayer Wise, is the congregational arm of Reform Judaism in North America. The other two arms established ...
, and the
Unitarian Universalist Association Unitarian Universalist Association (UUA) is a liberal religious association of Unitarian Universalist congregations. It was formed in 1961 by the consolidation of the American Unitarian Association and the Universalist Church of America, both P ...
.
American Legion The American Legion, commonly known as the Legion, is a non-profit organization of U.S. war War is an intense armed conflict between states, governments, societies, or paramilitary groups such as mercenaries, insurgents, and militi ...
, the nation's largest military veterans organization, passed a resolution at their September 2016 annual convention calling on Congress to remove cannabis from the list of Schedule I drugs. In December 2016, the organization lobbied the incoming
Trump administration Donald Trump's tenure as the List of presidents of the United States, 45th president of the United States began with Inauguration of Donald Trump, his inauguration on January 20, 2017, and ended on January 20, 2021. Trump, a Republican Party ...
to reclassify cannabis as a Schedule III drug. The
National Conference of State Legislatures The National Conference of State Legislatures (NCSL), established in 1975, is a "nonpartisan public officials’ association composed of sitting state legislators" from the states, territories and commonwealths of the United States. Background ...
,
National League of Cities The National League of Cities (NLC) is an advocacy organization in the United States that represents the country's 19,495 cities, towns, and villages along with 49 state municipal leagues. Created in 1924, it has evolved into a leading membership ...
, and
U.S. Conference of Mayors The United States Conference of Mayors (USCM) is the official non-partisan organization of cities with populations of 30,000 or more. The cities are each represented by their mayors or other chief elected officials. The organization was founded i ...
have all called for cannabis to be removed from the list of Schedule I drugs. The
National Association of Counties The National Association of Counties (NACo) is an organization that represents county governments in the United States.federalism Federalism is a combined or compound mode of government that combines a general government (the central or "federal" government) with regional governments (Province, provincial, State (sub-national), state, Canton (administrative division), can ...
and local control of cannabis businesses ... under state law". Delegates at the
2016 Democratic National Convention The 2016 Democratic National Convention was a presidential nominating convention, held at the Wells Fargo Center in Philadelphia, Pennsylvania, from July 25 to 28, 2016. The convention gathered delegates of the Democratic Party, the majo ...
voted to approve a
party platform A political party platform (US English), party program, or party manifesto (preferential term in British & often Commonwealth English) is a formal set of principle goals which are supported by a political party or individual candidate, in order ...
calling for cannabis to be removed from the list of Schedule I drugs. Other organizations that have called for rescheduling include the
American Bar Association The American Bar Association (ABA) is a voluntary bar association of lawyers and law students, which is not specific to any jurisdiction in the United States. Founded in 1878, the ABA's most important stated activities are the setting of acad ...
and the
National Sheriffs' Association The National Sheriffs' Association (NSA) is a U.S. trade association. Its stated purpose is to raise the level of professionalism among U.S. sheriffs, their deputies and others in the fields of criminal justice and public safety. Since its found ...
.


Individuals

Individuals who have been particularly active in efforts to support the medical use of cannabis include Robert Randall,
Dennis Peron Dennis Robert Peron (April 8, 1945 – January 27, 2018) was an American activist and businessman who became a leader in the movement for the legalization of cannabis throughout the 1990s. He influenced many in California and thus changed ...
,
Ed Rosenthal Edward "Ed" Rosenthal (born December 2, 1944) is an American horticulturist, author, publisher, and ''Cannabis'' grower known for his advocacy for the legalization of marijuana use. He served as a columnist for '' High Times Magazine'' during th ...
, Steve Kubby, Steve DeAngelo, Richard Lee,
Jon Gettman Jon B. Gettman (born August 20, 1957) is a marijuana rights activist, a leader of the Coalition for Rescheduling Cannabis, and a former head of the National Organization for the Reform of Marijuana Laws. He has a PhD in public policy and regiona ...
,
Brownie Mary Mary Jane Rathbun (December 22, 1922 – April 10, 1999), popularly known as Brownie Mary, was an American medical cannabis rights activist. As a hospital volunteer at San Francisco General Hospital, she became known for baking and distrib ...
, and Tod H. Mikuriya. Former talk show host
Montel Williams Montel Brian Anthony Williams (born July 3, 1956) is an American television host, actor and motivational speaker. He is known for hosting the long-running daytime tabloid talk show ''The Montel Williams Show'', which ran in syndication from 1991 ...
is a well-known advocate who uses cannabis to treat his
multiple sclerosis Multiple (cerebral) sclerosis (MS), also known as encephalomyelitis disseminata or disseminated sclerosis, is the most common demyelinating disease, in which the insulating covers of nerve cells in the brain and spinal cord are damaged. This d ...
, a topic he has testified about in a number of states considering medical cannabis legislation. Former U.S. Surgeon General
Joycelyn Elders Minnie Joycelyn Elders (born Minnie Lee Jones; August 13, 1933) is an American pediatrician and public health administrator who served as Surgeon General of the United States from 1993 to 1994. A vice admiral in the Public Health Service Commiss ...
has also testified in support of medical cannabis legislation in several states. Members of Congress who have introduced legislation to allow the medical use of cannabis include
Ron Paul Ronald Ernest Paul (born August 20, 1935) is an American author, activist, physician and retired politician who served as the U.S. representative for Texas's 22nd congressional district from 1976 to 1977 and again from 1979 to 1985, as well ...
,
Barney Frank Barnett Frank (born March 31, 1940) is a former American politician. He served as a member of the U.S. House of Representatives from Massachusetts from 1981 to 2013. A Democrat, Frank served as chairman of the House Financial Services Committee ...
,
Maurice Hinchey Maurice Dunlea Hinchey (October 27, 1938 – November 22, 2017) was an American politician who served as a U.S. Representative from New York and was a member of the Democratic Party. He retired at the end of his term in January 2013 after 20 ...
,
Sam Farr Samuel Sharon Farr (born July 4, 1941) is an American politician who was the U.S. representative for California's 17th (1993–2013) and 20th congressional districts (2013–17). He is a member of the Democratic Party. He was elected to Co ...
,
Dana Rohrabacher Dana Tyrone Rohrabacher (; born June 21, 1947) is a former American politician who served in the U.S. House of Representatives from 1989 to 2019. A Republican, he represented for the last three terms of his House tenure. Rohrabacher ran for re- ...
,
Steve Cohen Steve, Steven or Stephen Cohen may refer to: Sportspeople * Stephan Cohen (born 1971), French pocket billiards player * Steve Cohen (gymnast) (born 1946), American Olympic gymnast *Steve Cohen (judoka) (born 1955), American judoka and Olympian *Ste ...
,
Don Young Donald Edwin Young (June 9, 1933 – March 18, 2022) was an American politician from the state of Alaska. At the time of his death, he was the longest-serving Republican in congressional history, having been the U.S. representative for for ...
,
Jared Polis Jared Schutz Polis (; born May 12, 1975) is an American politician, entrepreneur, businessman, and philanthropist, serving as the 43rd governor of Colorado since January 2019. He served one term on the Colorado State Board of Education from 200 ...
,
Earl Blumenauer Earl Francis Blumenauer ( ; born August 16, 1948) is an American lawyer, author, and politician serving as the U.S. representative for since 1996. The district includes most of Portland east of the Willamette River. A member of the Democratic P ...
,
Tom Garrett Thomas William Garrett (26 July 1858 – 6 August 1943) was an early Australian Test cricketer and, later, a distinguished public servant. Early life Tom Garrett was the second son of a newspaper proprietor and politician who bore the same n ...
,
Rand Paul Randal Howard Paul (born January 7, 1963) is an American physician and politician serving as the junior U.S. senator from Kentucky since 2011. A member of the Republican Party, he is a son of former three-time presidential candidate and 12 ...
, and
Bernie Sanders Bernard Sanders (born September8, 1941) is an American politician who has served as the junior United States senator from Vermont since 2007. He was the U.S. representative for the state's at-large congressional district from 1991 to 2007 ...
. Rep. Rohrabacher (R–CA) has been particularly active in congressional reform efforts, introducing multiple medical cannabis bills including the
Rohrabacher–Farr amendment The Rohrabacher–Farr amendment (also known as the Rohrabacher–Blumenauer amendment) is legislation first introduced by U.S. Rep. Maurice Hinchey in 2001, prohibiting the Justice Department from spending funds to interfere with the implementation ...
for a number of years until it became law in 2014. He also uses a cannabis-based drug to relieve the symptoms of his arthritis.
Eugene Monroe Eugene Christopher Monroe (born April 18, 1987) is a former American football offensive tackle who played seven seasons in the National Football League (NFL). Selected eighth overall in the 2009 NFL draft, he spent the early years of his pro ca ...
,
Derrick Morgan Derrick Morgan (born 27 March 1940)Walters, Basil (2012)A New Day – Songs heralding JA’s Independence", '' Jamaica Observer'', 3 June 2012, retrieved 3 June 2012 is a Jamaican musical artist who was popular in the 1960s and 1970s. He worke ...
,
Kyle Turley Kyle John Turley (born September 24, 1975) is a former American football offensive tackle who played nine seasons in the National Football League (NFL). Selected 7th overall in the 1998 NFL draft, Turley played five seasons for the New Orleans ...
, and
Jim McMahon James Robert McMahon Jr. (born August 21, 1959) is a former American football quarterback who played in the National Football League (NFL) for 15 seasons, most notably with the Chicago Bears. McMahon played college football at BYU, where he wa ...
are among a group of NFL players that have advocated for allowing the use of cannabis in the league, as a treatment option for
concussion A concussion, also known as a mild traumatic brain injury (mTBI), is a head injury that temporarily affects brain functioning. Symptoms may include loss of consciousness (LOC); memory loss; headaches; difficulty with thinking, concentration, ...
s and a pain reliever that can reduce reliance on addictive
opioid Opioids are substances that act on opioid receptors to produce morphine-like effects. Medically they are primarily used for pain relief, including anesthesia. Other medical uses include suppression of diarrhea, replacement therapy for opioid us ...
drugs.
NBA The National Basketball Association (NBA) is a professional basketball league in North America. The league is composed of 30 teams (29 in the United States and 1 in Canada) and is one of the major professional sports leagues in the United St ...
head coach Steve Kerr has also voiced support for the medical use of cannabis in professional sports.
Dr. Sanjay Gupta Sanjay Gupta (born October 23, 1969) is an American neurosurgeon, medical reporter, and writer. He serves as associate chief of the neurosurgery service at Grady Memorial Hospital in Atlanta, Georgia, associate professor of neurosurgery at t ...
, neurosurgeon and chief medical correspondent for
CNN CNN (Cable News Network) is a multinational cable news channel headquartered in Atlanta, Georgia, U.S. Founded in 1980 by American media proprietor Ted Turner and Reese Schonfeld as a 24-hour cable news channel, and presently owned by ...
, has produced a five-part documentary series for the network – titled ''Weed'' – arguing in favor of the medical benefits of cannabis. Gupta was initially dismissive toward the medical use of cannabis, but upon researching further he changed his mind and wrote a column apologizing for his past views. Filmmaker
Jed Riffe Jed Riffe is an American filmmaker and founder of Jed Riffe Films + Electronic Media. For over 30 years his documentary films have focused on social issues and politics including: Native American histories and struggles (Ishi, the Last Yahi, Cal ...
has also explored the subject in his 2006 documentary ''Waiting to Inhale''.


Opposition

The
American Academy of Pediatrics The American Academy of Pediatrics (AAP) is an American professional association of pediatricians, headquartered in Itasca, Illinois. It maintains its Department of Federal Affairs office in Washington, D.C. Background The Academy was founded ...
and
American Psychiatric Association The American Psychiatric Association (APA) is the main professional organization of psychiatrists and trainee psychiatrists in the United States, and the largest psychiatric organization in the world. It has more than 37,000 members are involve ...
oppose the legalization of medical cannabis outside the FDA approval process. However, the AAP also supports rescheduling for the purpose of facilitating research. Individuals who have been particularly active in opposing the medical use of cannabis include
Barry McCaffrey Barry Richard McCaffrey (born November 17, 1942) is a retired United States Army general and current news commentator, professor and business consultant who served in President Bill Clinton's Cabinet as the Director of the Office of National Dru ...
, John Walters,
Andrea Barthwell Andrea Grubb Barthwell, M.D. (born 1953 or 1954) worked in the White House under President of the United States George W. Bush as Deputy Director for Demand Reduction at the Office of National Drug Control Policy. Education Barthwell studied at Wes ...
, Bill Montgomery,
Mark Souder Mark Edward Souder (July 18, 1950 – September 26, 2022) was an American politician and businessman from Indiana. A Republican, he was a U.S. Representative from 1995 to 2010. During the 1980s and early 1990s, he worked as a congressional ai ...
,
Sheldon Adelson Sheldon Gary Adelson (; August 4, 1933 – January 11, 2021) was an American businessman, investor, political donor and philanthropist. He was the founder, chairman and chief executive officer of Las Vegas Sands Corporation, which owns th ...
,
Mel Sembler Melvin Floyd Sembler (born May 10, 1930) is an American former diplomat who was the United States Ambassador to Italy (2001–2005), and Ambassador to Australia and Nauru (1989–1993). He has also served as chairman of the board of the Sembler ...
, and Kevin Sabet. Former U.S. Rep.
Bob Barr Robert Laurence Barr Jr. (born November 5, 1948) is an American attorney and politician. He served as a federal prosecutor and as a United States House of Representatives, Congressman. He represented Georgia's 7th congressional district as a Re ...
was a particularly ardent opponent of medical cannabis in Congress, introducing the "Barr amendment" which blocked implementation of a Washington, D.C. ballot initiative legalizing the medical use of cannabis. After leaving Congress, however, Barr renounced his earlier views and joined
Marijuana Policy Project The Marijuana Policy Project (MPP) is the largest organization working solely on marijuana policy reform in the United States in terms of its budget, number of members, and staff. Its stated aims are to: (1) increase public support for non-pu ...
to lobby for repeal of the legislation he originally authored.


Other

The
American Medical Association The American Medical Association (AMA) is a professional association and lobbying group of physicians and medical students. Founded in 1847, it is headquartered in Chicago, Illinois. Membership was approximately 240,000 in 2016. The AMA's state ...
and
American College of Physicians The American College of Physicians (ACP) is a national organization of internists, who specialize in the diagnosis, treatment, and care of adults.Sokanu "What is an Internist?" Retrieved October 20, 2014 With 161,000 members, ACP is the largest ...
do not take a position on the legalization of medical cannabis, but have called for the Schedule I classification to be reviewed. The
American Academy of Family Physicians The American Academy of Family Physicians (AAFP) was founded in 1947 to promote and maintain high-quality standards for family medicine, an offshoot of the classical general practitioner. It is headquartered in Leawood, Kansas. AAFP is one of ...
and
American Society of Addiction Medicine The American Society of Addiction Medicine (ASAM), founded in 1954, is a professional medical society representing over 6,000 physicians, clinicians and associated professionals in the field of addiction medicine. ASAM is dedicated to increasing ...
also do not take a position, but do support rescheduling to better facilitate research. The
American Heart Association The American Heart Association (AHA) is a nonprofit organization in the United States that funds cardiovascular medical research, educates consumers on healthy living and fosters appropriate cardiac care in an effort to reduce disability and death ...
supports rescheduling to allow for "a more nuanced approach to marijuana legislation and regulation". The
American Cancer Society The American Cancer Society (ACS) is a nationwide voluntary health organization dedicated to eliminating cancer. Established in 1913, the society is organized into six geographical regions of both medical and lay volunteers operating in more than ...
and
American Psychological Association The American Psychological Association (APA) is the largest scientific and professional organization of psychologists in the United States, with over 133,000 members, including scientists, educators, clinicians, consultants, and students. It ha ...
have noted the obstacles that exist for conducting research on cannabis, and have called on the federal government to better enable scientific study of the drug.


Cannabinoid drugs

There are currently four
cannabinoid Cannabinoids () are several structural classes of compounds found in the cannabis plant primarily and most animal organisms (although insects lack such receptors) or as synthetic compounds. The most notable cannabinoid is the phytocannabinoid tet ...
drugs (Marinol, Syndros, Cesamet, and Epidiolex) available for prescription use in the United States. For non-prescription use, CBD derived from hemp is legal at the federal level but legality (and enforcement) varies by state.


Dronabinol

Dronabinol is synthetically manufactured
THC Tetrahydrocannabinol (THC) is the principal psychoactive constituent of cannabis and one of at least 113 total cannabinoids identified on the plant. Although the chemical formula for THC (C21H30O2) describes multiple isomers, the term ''THC' ...
. It has been approved by the FDA in pill form as Marinol and in oral solution form as Syndros.


Marinol

Marinol is a sesame oil suspension of dronabinol encapsulated in a gelatin shell. It received FDA approval in 1985 for treatment of nausea and vomiting associated with chemotherapy, and additionally in 1992 as an appetite stimulant for treatment of AIDS-related weight loss. It was initially classified as a Schedule II drug until it was moved to Schedule III in 1999. Marinol was developed by Unimed Pharmaceuticals, although initial research on the drug was mostly funded by the U.S. government. Unimed Pharmaceuticals was acquired by Solvay Pharmaceuticals in 1999.


Syndros

Syndros is a liquid oral formulation of dronabinol approved for treatment of nausea and vomiting related to chemotherapy and weight loss associated with AIDS. Syndros received FDA approval in July 2016 and was assigned a Schedule II classification by the DEA in March 2017. Syndros is manufactured by Insys Therapeutics, which received attention in 2016 for contributing heavily to the defeat of a cannabis legalization measure in Arizona, in an apparent attempt to protect market share for the newly developed drug. Syndros became available for prescription use in July 2017.


Nabilone

Nabilone Nabilone, sold under the brand name Cesamet among others, is a synthetic cannabinoid with therapeutic use as an antiemetic and as an adjunct analgesic for neuropathic pain. It mimics tetrahydrocannabinol (THC), the primary psychoactive compound ...
is a synthetic cannabinoid similar to THC in molecular structure. It is sold in pill form only as the drug Cesamet.


Cesamet

Cesamet received FDA approval in 1985 for treatment of chemotherapy-induced nausea and vomiting. It was discontinued by its manufacturer
Eli Lilly Eli Lilly (July 8, 1838 – June 6, 1898) was an American soldier, pharmacist, chemist, and businessman who founded the Eli Lilly and Company pharmaceutical corporation. Lilly enlisted in the Union Army during the American Civil War and r ...
in 1989 for commercial reasons, and in 2004 U.S. rights to the drug were sold to
Valeant Pharmaceuticals Bausch Health Companies Inc. (formerly Valeant Pharmaceuticals International, Inc.) is a Canadian multinational specialty pharmaceutical company based in Laval, Quebec, Canada. It develops, manufactures and markets pharmaceutical products and ...
. In 2006 Valeant received FDA approval to resume sales. Cesamet has remained a Schedule II drug since its first introduction.


Cannabidiol

Cannabidiol Cannabidiol (CBD) is a phytocannabinoid discovered in 1940. It is one of 113 identified cannabinoids in cannabis plants, along with tetrahydrocannabinol (THC), and accounts for up to 40% of the plant's extract. , clinical research on CBD incl ...
(CBD) is a non-psychoactive cannabinoid extracted from the cannabis plant. It has received FDA approval as the drug Epidiolex.


Epidiolex

Epidiolex Cannabidiol (CBD) is a phytocannabinoid discovered in 1940. It is one of 113 identified cannabinoids in cannabis plants, along with tetrahydrocannabinol (THC), and accounts for up to 40% of the plant's extract. , clinical research on CBD incl ...
is a liquid oral formulation of cannabidiol. It received FDA approval for treatment of seizures associated with
Dravet syndrome Dravet syndrome, previously known as severe myoclonic epilepsy of infancy (SMEI), is an autosomal dominant genetic disorder which causes a catastrophic form of epilepsy, with prolonged seizures that are often triggered by hot temperatures or feve ...
and
Lennox–Gastaut syndrome Lennox–Gastaut syndrome (LGS) is a complex, rare, and severe childhood-onset epilepsy. It is characterized by multiple and concurrent seizure types, cognitive dysfunction, and slow spike waves on electroencephalogram (EEG). Typically, it presents ...
in June 2018, and was assigned a Schedule V classification by the DEA in September 2018. Epidiolex is manufactured by Greenwich Biosciences, a U.S. subsidiary of the British firm
GW Pharmaceuticals GW Pharmaceuticals is a British pharmaceutics company known for its multiple sclerosis treatment product nabiximols (brand name, Sativex) which was the first natural cannabis plant derivative to gain market approval in any country. Another cannab ...
. Epidiolex became available for prescription use in November 2018. In April 2020, the DEA removed Epidiolex from the list of federally controlled substances. In August 2020, Epidiolex was approved for treatment of seizures associated with
tuberous sclerosis complex Tuberous sclerosis complex (TSC) is a rare multisystem autosomal dominant genetic disease that causes non-cancerous tumours to grow in the brain and on other vital organs such as the kidneys, heart, liver, eyes, lungs and skin. A combination ...
.


Non-prescription use

In addition to its use for treatment of seizure disorders, cannabidiol is used by some individuals under the belief that it possesses a number of other medical properties – but these claims have yet to be thoroughly studied and proven. The FDA has thus not approved CBD for any other medical use; however, the 2018 farm bill legalized CBD extracted from
hemp Hemp, or industrial hemp, is a botanical class of ''Cannabis sativa'' cultivars grown specifically for industrial or medicinal use. It can be used to make a wide range of products. Along with bamboo, hemp is among the fastest growing plants o ...
(less than 0.3% THC) at the federal level. The legality of CBD products also varies by state, and in some jurisdictions prohibition is not strictly enforced.


Effects of legalizing medical cannabis

A 2016 study found significant drops in violent crime in states that have legalized medical cannabis. A 2017 study similarly found that introduction of medical cannabis laws caused a reduction in violent crime in American states that border Mexico. A 2018 study found that legalizing medical cannabis in some states made residents of neighboring states increasingly tolerant toward cannabis regulation. A 2013 study found that medical cannabis legalization is associated with an 8-11% reduction in traffic fatalities. Several studies have found decreased rates of
opioid Opioids are substances that act on opioid receptors to produce morphine-like effects. Medically they are primarily used for pain relief, including anesthesia. Other medical uses include suppression of diarrhea, replacement therapy for opioid us ...
use and abuse in states that have legalized medical cannabis. Several studies have found no increase in teen use in states that have legalized cannabis for medical purposes. A 2018
meta-analysis A meta-analysis is a statistical analysis that combines the results of multiple scientific studies. Meta-analyses can be performed when there are multiple scientific studies addressing the same question, with each individual study reporting me ...
in the journal ''
Addiction Addiction is a neuropsychological disorder characterized by a persistent and intense urge to engage in certain behaviors, one of which is the usage of a drug, despite substantial harm and other negative consequences. Repetitive drug use o ...
'' similarly found no increase.


Qualifying conditions

Below is a comparison of medical conditions for which doctors can recommend cannabis in each state or territory. The table does not include all approved conditions and could contain outdated information. Low-THC, high-CBD states are not listed. Data additionally obtained from
Leafly Leafly is a website focused on cannabis use and education. The company says it has more than 120 million annual visitors and over 10 million monthly active users. Leafly provides a wide range of information on cannabis, including 1.5 million con ...
and ProCon.org.


Reciprocity

Many states have reciprocity laws that recognize out-of-state registrations for medical cannabis patients. Below is a list of reciprocity policies as of October 8, 2021.


See also

*
Legal history of cannabis in the United States In the United States, increased restrictions and labeling of cannabis (legal term ''marijuana'' or ''marihuana'') as a poison began in many states from 1906 onward, and outright prohibitions began in the 1920s. By the mid-1930s cannabis was regu ...
* Timeline of cannabis laws in the United States *
Legality of cannabis by U.S. jurisdiction In the United States, the use and possession of cannabis is illegal under federal law for any purpose by way of the Controlled Substances Act of 1970 (CSA). Under the CSA, cannabis is classified as a Schedule I substance, determined to hav ...
*
Legalization of non-medical cannabis in the United States In the United States, the non-medical use of cannabis is legalized in 21 states (plus Guam, the Northern Mariana Islands, and the District of Columbia) and decriminalized in 10 states (plus the U.S. Virgin Islands) as of November 2022. '' De ...
*
Removal of cannabis from Schedule I of the Controlled Substances Act In the United States, the removal of cannabis from Schedule I of the Controlled Substances Act is a proposed legal and administrative change in cannabis-related law at the federal level. It has been proposed repeatedly since 1972. The category ...
* History of medical cannabis


Notes


References


External links


State Medical Marijuana Laws
(National Conference of State Legislators) {{DEFAULTSORT:Medical cannabis in the United States Cannabis in the United States Cannabis law in the United States Cannabis law reform in the United States Drug control law in the United States Drug policy of the United States Medicinal use of cannabis Federalism in the United States