Substance dependence, also known as drug dependence, is a biopsychological situation whereby an individual's functionality is dependent on the necessitated re-consumption of a psychoactive substance because of an adaptive state that has developed within the individual from psychoactive substance consumption that results in the experience of
withdrawal
Withdrawal means "an act of taking out" and may refer to:
* Anchoresis (withdrawal from the world for religious or ethical reasons)
* '' Coitus interruptus'' (the withdrawal method)
* Drug withdrawal
* Social withdrawal
* Taking of money from ...
and that necessitates the re-consumption of the drug.
A ''
drug 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 oft ...
'', a distinct concept from substance dependence, is defined as
compulsive, out-of-control drug use, despite negative consequences.
An ''addictive drug'' is a drug which is both
rewarding
The reward system (the mesocorticolimbic circuit) is a group of neural structures responsible for incentive salience (i.e., "wanting"; desire or craving for a reward and motivation), associative learning (primarily positive reinforcement and class ...
and
reinforcing.
ΔFosB, a
gene transcription factor, is now known to be a critical component and common factor in the development of virtually all forms of behavioral and drug addictions,
but not dependence.
The
International Classification of Diseases
The International Classification of Diseases (ICD) is a globally used diagnostic tool for epidemiology, health management and clinical purposes. The ICD is maintained by the World Health Organization (WHO), which is the directing and coordina ...
classifies substance dependence as a
mental
Mental may refer to:
* of or relating to the mind
Films
* ''Mental'' (2012 film), an Australian comedy-drama
* ''Mental'' (2016 film), a Bangladeshi romantic-action movie
* ''Mental'', a 2008 documentary by Kazuhiro Soda
* ''Mental'', a 2014 O ...
and
behavioural disorder
Disorder may refer to randomness, non-order, or no intelligible pattern.
Disorder may also refer to:
Healthcare
* Disorder (medicine), a functional abnormality or disturbance
* Mental disorder or psychological disorder, a psychological pattern ...
.
Within the framework of the 4th edition of the ''
Diagnostic and Statistical Manual of Mental Disorders'' (''DSM-IV''), substance dependence is redefined as a drug addiction, and can be diagnosed without the occurrence of a withdrawal syndrome. It was described accordingly: "When an individual persists in use of alcohol or other drugs despite problems related to use of the substance, substance dependence may be diagnosed. Compulsive and repetitive use may result in tolerance to the effect of the drug and withdrawal symptoms when use is reduced or stopped. This, along with Substance Abuse are considered Substance Use Disorders." In the
DSM-5
The ''Diagnostic and Statistical Manual of Mental Disorders, Fifth Edition'' (DSM-5), is the 2013 update to the ''Diagnostic and Statistical Manual of Mental Disorders'', the taxonomic and diagnostic tool published by the American Psychiatric ...
(released in 2013),
substance abuse
Substance abuse, also known as drug abuse, is the use of a drug in amounts or by methods which are harmful to the individual or others. It is a form of substance-related disorder. Differing definitions of drug abuse are used in public health, ...
and substance dependence have been merged into the category of
substance use disorders and they no longer exist as individual diagnoses.
Withdrawal
Withdrawal is the body's reaction to abstaining from a substance upon which a person has developed a dependence syndrome. When dependence has developed, cessation of substance-use produces an unpleasant state, which promotes continued drug use through
negative reinforcement; i.e., the drug is used to escape or avoid re-entering the associated withdrawal state. The withdrawal state may include physical-somatic symptoms (
physical dependence), emotional-motivational symptoms (
psychological dependence), or both. Chemical and hormonal imbalances may arise if the substance is not re-introduced. Psychological stress may also result if the substance is not re-introduced.
Infants also experience substance withdrawal, known as
neonatal abstinence syndrome (NAS), which can have severe and life-threatening effects. Addiction to drugs such as alcohol in expectant mothers not only causes NAS, but also an array of other issues which can continually affect the infant throughout their lifetime.
Risk factors
Dependence potential
The dependence potential of a drug varies from substance to substance, and from individual to individual. Dose, frequency,
pharmacokinetics
Pharmacokinetics (from Ancient Greek ''pharmakon'' "drug" and ''kinetikos'' "moving, putting in motion"; see chemical kinetics), sometimes abbreviated as PK, is a branch of pharmacology dedicated to determining the fate of substances administered ...
of a particular substance, route of administration, and time are critical factors for developing a drug dependence.
An article in ''
The Lancet
''The Lancet'' is a weekly peer-reviewed general medical journal and one of the oldest of its kind. It is also the world's highest-impact academic journal. It was founded in England in 1823.
The journal publishes original research articles, ...
'' compared the harm and dependence liability of 20 drugs, using a scale from zero to three for physical dependence, psychological dependence, and pleasure to create a mean score for dependence. Selected results can be seen in the chart below.
Capture rates
Capture rates enumerate the percentage of users who reported that they had become dependent to their respective drug at some point.
Biomolecular mechanisms
Psychological dependence
Two factors have been identified as playing pivotal roles in
psychological dependence: the
neuropeptide
Neuropeptides are chemical messengers made up of small chains of amino acids that are synthesized and released by neurons. Neuropeptides typically bind to G protein-coupled receptors (GPCRs) to modulate neural activity and other tissues like th ...
"
corticotropin-releasing factor" (CRF) and the
gene transcription factor
In molecular biology, a transcription factor (TF) (or sequence-specific DNA-binding factor) is a protein that controls the rate of transcription of genetic information from DNA to messenger RNA, by binding to a specific DNA sequence. The fu ...
"
cAMP response element binding protein" (CREB).
The
nucleus accumbens (NAcc) is one brain structure that has been implicated in the
psychological
Psychology is the scientific study of mind and behavior. Psychology includes the study of conscious and unconscious phenomena, including feelings and thoughts. It is an academic discipline of immense scope, crossing the boundaries betw ...
component of
drug dependence. In the NAcc, CREB is activated by
cyclic adenosine monophosphate
Cyclic adenosine monophosphate (cAMP, cyclic AMP, or 3',5'-cyclic adenosine monophosphate) is a second messenger important in many biological processes. cAMP is a derivative of adenosine triphosphate (ATP) and used for intracellular signal transd ...
(cAMP) immediately after a high and triggers changes in
gene expression
Gene expression is the process by which information from a gene is used in the synthesis of a functional gene product that enables it to produce end products, protein or non-coding RNA, and ultimately affect a phenotype, as the final effect. ...
that affect proteins such as
dynorphin; dynorphin peptides reduce
dopamine
Dopamine (DA, a contraction of 3,4-dihydroxyphenethylamine) is a neuromodulatory molecule that plays several important roles in cells. It is an organic chemical of the catecholamine and phenethylamine families. Dopamine constitutes about 8 ...
release into the NAcc by temporarily inhibiting the
reward pathway. A sustained activation of CREB thus forces a larger dose to be taken to reach the same effect. In addition, it leaves the user feeling generally depressed and dissatisfied, and unable to find pleasure in previously enjoyable activities, often leading to a return to the drug for another dose.
In addition to CREB, it is hypothesized that stress mechanisms play a role in dependence. Koob and Kreek have hypothesized that during drug use, activates the
hypothalamic–pituitary–adrenal axis (HPA axis) and other stress systems in the
extended amygdala. This activation influences the dysregulated emotional state associated with psychological dependence. They found that as drug use escalates, so does the presence of CRF in human
cerebrospinal fluid. In rat models, the separate use of CRF inhibitors and
CRF receptor antagonists both decreased
self-administration of the drug of study. Other studies in this review showed dysregulation of other neuropeptides that affect the HPA axis, including
enkephalin
An enkephalin is a pentapeptide involved in regulating nociception in the body. The enkephalins are termed endogenous ligands, as they are internally derived and bind to the body's opioid receptors. Discovered in 1975, two forms of enkephalin ...
which is an endogenous
opioid peptide that regulates pain. It also appears that
µ-opioid receptors, which enkephalin acts upon, is influential in the
reward system
The reward system (the mesocorticolimbic circuit) is a group of neural structures responsible for incentive salience (i.e., "wanting"; desire or craving for a reward and motivation), associative learning (primarily positive reinforcement and cl ...
and can regulate the expression of
stress hormones.
Increased expression of AMPA receptors in nucleus accumbens MSNs is a potential mechanism of aversion produced by drug withdrawal.
Physical dependence
Upregulation of the
signal transduction
Signal transduction is the process by which a chemical or physical signal is transmitted through a cell as a series of molecular events, most commonly protein phosphorylation catalyzed by protein kinases, which ultimately results in a cellular ...
pathway in the
locus coeruleus
The locus coeruleus () (LC), also spelled locus caeruleus or locus ceruleus, is a nucleus in the pons of the brainstem involved with physiological responses to stress and panic. It is a part of the reticular activating system.
The locus coer ...
by has been implicated as the mechanism responsible for certain aspects of opioid-induced
physical dependence.
The temporal course of withdrawal correlates with LC firing, and administration of
α2 agonists into the locus coeruleus leads to a decrease in LC firing and norepinephrine release during withdrawal. A possible mechanism involves upregulation of NMDA receptors, which is supported by the attenuation of withdraw by NMDA receptor antagonists. Physical dependence on opioids has been observed to produce an elevation of extracellular glutamate, an increase in NMDA receptor subunits NR1 and NR2A, phosphorylated CaMKII, and c-fos. Expression of CaMKII and c-fos is attenuated by NMDA receptor antagonists, which is associated with blunted withdrawal in adult rats, but not neonatal rats While acute administration of opioids decreases AMPA receptor expression and depresses both NMDA and non-NMDA excitatory postsynaptic potentials in the NAC, withdrawal involves a lowered threshold for LTP and an increase in spontaneous firing in the NAc.
Diagnosis
DSM classification
"Substance dependence", as defined in the
DSM-IV, can be diagnosed with
physiological dependence
Physical dependence is a physical condition caused by chronic use of a tolerance-forming drug, in which abrupt or gradual drug withdrawal causes unpleasant physical symptoms. Physical dependence can develop from low-dose therapeutic use of certain ...
, evidence of tolerance or withdrawal, or without physiological dependence.
DSM-IV substance dependencies include:
* 303.90
Alcohol dependence
Alcohol dependence is a previous (DSM-IV and ICD-10) psychiatric diagnosis in which an individual is physically or psychologically dependent upon alcohol (also chemically known as ethanol).
In 2013, it was reclassified as alcohol use disorder ...
* 304.00
Opioid dependence
* 304.10
Sedative
A sedative or tranquilliser is a substance that induces sedation by reducing irritability or excitement. They are CNS depressants and interact with brain activity causing its deceleration. Various kinds of sedatives can be distinguished, but ...
,
hypnotic
Hypnotic (from Greek ''Hypnos'', sleep), or soporific drugs, commonly known as sleeping pills, are a class of (and umbrella term for) psychoactive drugs whose primary function is to induce sleep (or surgical anesthesiaWhen used in anesthesia ...
, or
anxiolytic dependence (including
benzodiazepine dependence and
barbiturate dependence)
* 304.20
Cocaine dependence
* 304.30
Cannabis dependence
* 304.40
Amphetamine dependence (or amphetamine-like)
* 304.50
Hallucinogen dependence
* 304.60
Inhalant
Inhalants are a broad range of household and industrial chemicals whose volatile vapors or pressurized gases can be concentrated and breathed in via the nose or mouth to produce intoxication, in a manner not intended by the manufacturer. They ...
dependence
* 304.80
Polysubstance dependence
* 304.90
Phencyclidine
Phencyclidine or phenylcyclohexyl piperidine (PCP), also known as angel dust among other names, is a dissociative anesthetic mainly used recreationally for its significant mind-altering effects. PCP may cause hallucinations, distorted percepti ...
(or phencyclidine-like) dependence
* 304.90 Other (or unknown) substance dependence
* 305.10
Nicotine dependence
Management
Addiction is a complex but treatable condition. It is characterized by compulsive drug craving, seeking, and use that persists even if the user is aware of severe adverse consequences. For some people, addiction becomes chronic, with periodic relapses even after long periods of abstinence. As a chronic, relapsing disease, addiction may require continued treatments to increase the intervals between relapses and diminish their intensity. While some with substance issues recover and lead fulfilling lives, others require ongoing additional support. The ultimate goal of addiction treatment is to enable an individual to manage their substance misuse; for some this may mean abstinence. Immediate goals are often to reduce substance abuse, improve the patient's ability to function, and minimize the medical and social complications of substance abuse and their addiction; this is called "
harm reduction".
Treatments for addiction vary widely according to the types of drugs involved, amount of drugs used, duration of the drug addiction, medical complications and the social needs of the individual. Determining the best type of recovery program for an addicted person depends on a number of factors, including: personality, drugs of choice, concept of spirituality or religion, mental or physical illness, and local availability and affordability of programs.
Many different ideas circulate regarding what is considered a successful outcome in the recovery from addiction. Programs that emphasize controlled drinking exist for alcohol addiction. Opiate replacement therapy has been a medical standard of treatment for opioid addiction for many years.
Treatments and attitudes toward addiction vary widely among different countries. In the US and developing countries, the goal of commissioners of treatment for drug dependence is generally total abstinence from all drugs. Other countries, particularly in Europe, argue the aims of treatment for drug dependence are more complex, with treatment aims including reduction in use to the point that drug use no longer interferes with normal activities such as work and family commitments; shifting the addict away from more dangerous routes of drug administration such as injecting to safer routes such as oral administration; reduction in crime committed by drug addicts; and treatment of other comorbid conditions such as
AIDS,
hepatitis
Hepatitis is inflammation of the liver parenchyma, liver tissue. Some people or animals with hepatitis have no symptoms, whereas others develop yellow discoloration of the skin and whites of the eyes (jaundice), Anorexia (symptom), poor appetite ...
and
mental health disorders. These kinds of outcomes can be achieved without eliminating drug use completely. Drug treatment programs in Europe often report more favorable outcomes than those in the US because the criteria for measuring success are functional rather than abstinence-based.
The supporters of programs with total abstinence from drugs as a goal believe that enabling further drug use means prolonged drug use and risks an increase in addiction and complications from addiction.
[Nils Bejerot: Swedish addiction epidemic in an international perspective, 1988](_blank)
Residential
Residential drug treatment can be broadly divided into two camps: 12-step programs and therapeutic communities. 12-step programs are a nonclinical support-group and spiritual-based approach to treating addiction. Therapy typically involves the use of
cognitive-behavioral therapy, an approach that looks at the relationship between thoughts, feelings and behaviors, addressing the root cause of maladaptive behavior. Cognitive-behavioral therapy treats addiction as a behavior rather than a disease, and so is subsequently curable, or rather, unlearnable. Cognitive-behavioral therapy programs recognize that, for some individuals, controlled use is a more realistic possibility.
One of many recovery methods are
12-step recovery programs, with prominent examples including
Alcoholics Anonymous,
Narcotics Anonymous, Drug Addicts Anonymous and
Pills Anonymous. They are commonly known and used for a variety of addictions for the individual addicted and the family of the individual.
Substance-abuse rehabilitation
Drug rehabilitation is the process of medical or psychotherapeutic treatment for dependency on psychoactive substances such as alcohol, prescription drugs, and street drugs such as cannabis, cocaine, heroin or amphetamines. The general intent i ...
(rehab) centers offer a residential treatment program for some of the more seriously addicted, in order to isolate the patient from drugs and interactions with other users and dealers. Outpatient clinics usually offer a combination of individual
counseling
Counseling is the professional guidance of the individual by utilizing psychological methods especially in collecting case history data, using various techniques of the personal interview, and testing interests and aptitudes.
This is a list of co ...
and group counseling. Frequently, a physician or psychiatrist will prescribe medications in order to help patients cope with the side effects of their addiction. Medications can help immensely with anxiety and insomnia, can treat underlying mental disorders (cf. self-medication hypothesis, Khantzian 1997) such as depression, and can help reduce or eliminate withdrawal symptomology when withdrawing from physiologically addictive drugs. Some examples are using
benzodiazepines for alcohol detoxification, which prevents
delirium tremens
Delirium tremens (DTs) is a rapid onset of confusion usually caused by withdrawal from alcohol. When it occurs, it is often three days into the withdrawal symptoms and lasts for two to three days. Physical effects may include shaking, shiver ...
and complications; using a slow taper of
benzodiazepines or a taper of
phenobarbital
Phenobarbital, also known as phenobarbitone or phenobarb, sold under the brand name Luminal among others, is a medication of the barbiturate type. It is recommended by the World Health Organization (WHO) for the treatment of certain types of ep ...
, sometimes including another
antiepileptic agent such as
gabapentin
Gabapentin, sold under the brand name Neurontin among others, is an anticonvulsant medication primarily used to treat partial seizures and neuropathic pain. It is a first-line medication for the treatment of neuropathic pain caused by diab ...
,
pregabalin, or
valproate, for withdrawal from barbiturates or benzodiazepines; using drugs such as
baclofen to reduce cravings and propensity for relapse amongst addicts to any drug, especially effective in stimulant users, and alcoholics (in which it is nearly as effective as benzodiazepines in preventing complications); using
clonidine
Clonidine, sold under the brand name Catapres among others, is an α2-adrenergic agonist medication used to treat high blood pressure, ADHD, drug withdrawal ( alcohol, opioids, or nicotine), menopausal flushing, diarrhea, spasticity, an ...
, an
alpha-agonist, and
loperamide
Loperamide, sold under the brand name Imodium, among others,Drugs.co Page accessed September 4, 2015 is a medication used to decrease the frequency of diarrhea. It is often used for this purpose in inflammatory bowel disease and short bowel syn ...
for opioid detoxification, for first-time users or those who wish to attempt an abstinence-based recovery (90% of opioid users relapse to active addiction within eight months or are multiple relapse patients); or replacing an opioid that is interfering with or destructive to a user's life, such as illicitly-obtained
heroin,
dilaudid, or
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 ...
, with an opioid that can be administered legally, reduces or eliminates drug cravings, and does not produce a high, such as
methadone
Methadone, sold under the brand names Dolophine and Methadose among others, is a synthetic opioid agonist used for chronic pain and also for opioid dependence. It is used to treat chronic pain, and it is also used to treat addiction to hero ...
or
buprenorphine
Buprenorphine is an opioid used to treat opioid use disorder, acute pain, and chronic pain. It can be used under the tongue (sublingual), in the cheek (buccal), by injection (intravenous and subcutaneous), as a skin patch (transdermal ...
–
opioid replacement therapy
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. O ...
– which is the gold standard for treatment of opioid dependence in developed countries, reducing the risk and cost to both user and society more effectively than any other treatment modality (for opioid dependence), and shows the best short-term and long-term gains for the user, with the greatest longevity, least risk of fatality, greatest quality of life, and lowest risk of relapse and legal issues including arrest and incarceration.
In a survey of treatment providers from three separate institutions, the National Association of Alcoholism and Drug Abuse Counselors, Rational Recovery Systems and the Society of Psychologists in Addictive Behaviors, measuring the treatment provider's responses on the "Spiritual Belief Scale" (a scale measuring belief in the four spiritual characteristics of AA identified by Ernest Kurtz); the scores were found to
explain
An explanation is a set of statements usually constructed to describe a set of facts which clarifies the causes, context, and consequences of those facts. It may establish rules or laws, and may clarify the existing rules or laws in relati ...
41% of the
variance
In probability theory and statistics, variance is the expectation of the squared deviation of a random variable from its population mean or sample mean. Variance is a measure of dispersion, meaning it is a measure of how far a set of number ...
in the treatment provider's responses on the "Addiction Belief Scale" (a scale measuring adherence to the
disease model or the free-will model of addiction).
Behavioral programming
Behavioral programming is considered critical in helping those with addictions achieve abstinence. From the
applied behavior analysis
Applied behavior analysis (ABA), also called behavioral engineering, is a psychological intervention that applies empirical approaches based upon the principles of respondent and operant conditioning to change behavior of social significance. ...
literature and the
behavioral psychology literature, several evidence based intervention programs have emerged: (1)
behavioral marital therapy; (2)
community reinforcement approach; (3) cue exposure therapy; and (4)
contingency management strategies. In addition, the same author suggests that social skills training adjunctive to inpatient treatment of alcohol dependence is probably efficacious. Community reinforcement has both efficacy and effectiveness data. In addition, behavioral treatment such as community reinforcement and family training (CRAFT) have helped family members to get their loved ones into treatment. Motivational intervention has also shown to be an effective treatment for substance dependence.
Alternative therapies
Alternative therapies, such as
acupuncture
Acupuncture is a form of alternative medicine and a component of traditional Chinese medicine (TCM) in which thin needles are inserted into the body. Acupuncture is a pseudoscience; the theories and practices of TCM are not based on scient ...
, are used by some practitioners to alleviate the symptoms of drug addiction. In 1997, the American Medical Association (AMA) adopted, as policy, the following statement after a report on a number of alternative therapies including acupuncture:
Treatment and issues
Medical professionals need to apply many techniques and approaches to help patients with substance related disorders. Using a psychodynamic approach is one of the techniques that psychologists use to solve addiction problems. In psychodynamic therapy, psychologists need to understand the conflicts and the needs of the addicted person, and also need to locate the defects of their ego and defense mechanisms. Using this approach alone has proven to be ineffective in solving addiction problems. Cognitive and behavioral techniques should be integrated with psychodynamic approaches to achieve effective treatment for substance related disorders.
Cognitive treatment requires psychologists to think deeply about what is happening in the brain of an addicted person. Cognitive psychologists should zoom in to neural functions of the brain and understand that drugs have been manipulating the dopamine reward center of the brain. From this particular state of thinking, cognitive psychologists need to find ways to change the thought process of the addicted person.
Cognitive approach
There are two routes typically applied to a cognitive approach to substance abuse: tracking the thoughts that pull patients to addiction and tracking the thoughts that prevent them from relapsing. Behavioral techniques have the widest application in treating substance related disorders. Behavioral psychologists can use the techniques of "aversion therapy", based on the findings of
Pavlov's classical conditioning
Classical conditioning (also known as Pavlovian or respondent conditioning) is a behavioral procedure in which a biologically potent stimulus (e.g. food) is paired with a previously neutral stimulus (e.g. a triangle). It also refers to the lear ...
. It uses the principle of pairing abused substances with unpleasant stimuli or conditions; for example, pairing pain, electrical shock, or nausea with alcohol consumption.
The use of medications may also be used in this approach, such as using
disulfiram to pair unpleasant effects with the thought of alcohol use. Psychologists tend to use an integration of all these approaches to produce reliable and effective treatment. With the advanced clinical use of medications, biological treatment is now considered to be one of the most efficient interventions that psychologists may use as treatment for those with substance dependence.
Medicinal approach
Another approach is to use medicines that interfere with the functions of the drugs in the brain. Similarly, one can also substitute the misused substance with a weaker, safer version to slowly taper the patient off of their dependence. Such is the case with
Suboxone in the context of opioid dependence. These approaches are aimed at the process of detoxification. Medical professionals weigh the consequences of withdrawal symptoms against the risk of staying dependent on these substances. These withdrawal symptoms can be very difficult and painful times for patients. Most will have steps in place to handle severe withdrawal symptoms, either through behavioral therapy or other medications. Biological intervention should be combined with behavioral therapy approaches and other non-pharmacological techniques. Group therapies including anonymity, teamwork and sharing concerns of daily life among people who also have substance dependence issues can have a great impact on outcomes. However, these programs proved to be more effective and influential on persons who did not reach levels of serious dependence.
Vaccines
*
TA-CD is an active
vaccine
A vaccine is a biological preparation that provides active acquired immunity to a particular infectious or malignant disease. The safety and effectiveness of vaccines has been widely studied and verified.[ ...]
developed by the Xenova Group which is used to negate the effects of cocaine, making it suitable for use in treatment of addiction. It is created by combining
norcocaine with inactivated
cholera toxin.
*
TA-NIC is a proprietary
vaccine
A vaccine is a biological preparation that provides active acquired immunity to a particular infectious or malignant disease. The safety and effectiveness of vaccines has been widely studied and verified.[ ...]
in development similar to
TA-CD but being used to create human anti-nicotine
antibodies in a person to destroy
nicotine in the human body so that it is no longer effective.
History
The
phenomenon
A phenomenon (plural, : phenomena) is an observable event. The term came into its modern Philosophy, philosophical usage through Immanuel Kant, who contrasted it with the noumenon, which ''cannot'' be directly observed. Kant was heavily influe ...
of drug addiction has occurred to some degree throughout recorded
history
History (derived ) is the systematic study and the documentation of the human activity. The time period of event before the History of writing#Inventions of writing, invention of writing systems is considered prehistory. "History" is an umbr ...
(see "
Opium
Opium (or poppy tears, scientific name: ''Lachryma papaveris'') is dried latex obtained from the seed capsules of the opium poppy '' Papaver somniferum''. Approximately 12 percent of opium is made up of the analgesic alkaloid morphine, which ...
").
Modern
agricultural
Agriculture or farming is the practice of cultivating plants and livestock. Agriculture was the key development in the rise of sedentary human civilization, whereby farming of domesticated species created food surpluses that enabled peopl ...
practices, improvements in access to drugs, advancements in
biochemistry
Biochemistry or biological chemistry is the study of chemical processes within and relating to living organisms. A sub-discipline of both chemistry and biology, biochemistry may be divided into three fields: structural biology, enzymology ...
, and dramatic increases in the recommendation of drug usage by clinical practitioners have exacerbated the problem significantly in the 20th century. Improved means of active biological agent manufacture and the introduction of synthetic compounds, such as
fentanyl and
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. Meth ...
, are also factors contributing to drug addiction.
For the entirety of US history, drugs have been used by some members of the population. In the country's early years, most drug use by the settlers was of alcohol or tobacco.
The 19th century saw opium usage in the US become much more common and popular.
Morphine
Morphine is a strong opiate that is found naturally in opium, a dark brown resin in poppies ('' Papaver somniferum''). It is mainly used as a pain medication, and is also commonly used recreationally, or to make other illicit opioids. Ther ...
was isolated in the early 19th century, and came to be prescribed commonly by doctors, both as a painkiller and as an intended cure for opium addiction. At the time, the prevailing medical opinion was that the addiction process occurred in the stomach, and thus it was hypothesized that patients would not become addicted to morphine if it was injected into them via a
hypodermic needle
A hypodermic needle (from Greek ὑπο- (''hypo-'' = under), and δÎÏμα (''derma'' = skin)), one of a category of medical tools which enter the skin, called sharps, is a very thin, hollow tube with one sharp tip. It is commonly used w ...
, and it was further hypothesized that this might potentially be able to cure opium addiction. However, many people did become addicted to morphine. In particular, addiction to opium became widespread among soldiers fighting in the Civil War, who very often required painkillers and thus were very often prescribed morphine. Women were also very frequently prescribed opiates, and opiates were advertised as being able to relieve "female troubles".
Many soldiers in the Vietnam War were introduced to heroin and developed a dependency on the substance which survived even when they returned to the US. Technological advances in travel meant that this increased demand for heroin in the US could now be met. Furthermore, as technology advanced, more drugs were synthesized and discovered, opening up new avenues to substance dependency.
Society and culture
Demographics
Internationally, the U.S. and Eastern Europe contain the countries with the highest substance abuse disorder occurrence (5-6%). Africa, Asia, and the Middle East contain countries with the lowest worldwide occurrence (1-2%). Across the globe, those that tended to have a higher prevalence of substance dependence were in their twenties, unemployed, and men. The
National Survey on Drug Use and Health (NSDUH) reports on substance dependence/abuse rates in various population demographics across the U.S. When surveying populations based on race and ethnicity in those ages 12 and older, it was observed that American Indian/Alaskan Natives were among the highest rates and Asians were among the lowest rates in comparison to other racial/ethnic groups.
[Substance Abuse and Mental Health Services Administration]
Results from the 2013 National Survey on Drug Use and Health: Summary of National Findings
NSDUH Series H-48, HHS Publication No. (SMA) 14-4863. Rockville, MD: Substance Abuse and Mental Health Services Administration, 2014.
When surveying populations based on gender in those ages 12 and older, it was observed that males had a higher substance dependence rate than females. However, the difference in the rates are not apparent until after age 17.
''
Drug and Alcohol Dependence'' reports that older adults abuse drugs including alcohol at a rate of 15-20%. It's estimated that 52 million Americans beyond 12 years old have abused a substance.
Alcohol dependence or abuse rates were shown to have no correspondence with any person's education level when populations were surveyed in varying degrees of education from ages 26 and older. However, when it came to illicit drug use there was a correlation, in which those that graduated from college had the lowest rates. Furthermore, dependence rates were greater in unemployed populations ages 18 and older and in metropolitan-residing populations ages 12 and older.
The
National Opinion Research Center at the University of Chicago reported an analysis on disparities within admissions for substance abuse treatment in the Appalachian region, which comprises 13 states and 410 counties in the Eastern part of the U.S. While their findings for most demographic categories were similar to the national findings by NSDUH, they had different results for racial/ethnic groups which varied by sub-regions. Overall, Whites were the demographic with the largest admission rate (83%), while Alaskan Native, American Indian, Pacific Islander, and Asian populations had the lowest admissions (1.8%).
Legislation
Depending on the
jurisdiction
Jurisdiction (from Latin 'law' + 'declaration') is the legal term for the legal authority granted to a legal entity to enact justice. In federations like the United States, areas of jurisdiction apply to local, state, and federal levels.
Ju ...
, addictive drugs may be legal, legal only as part of a government sponsored study, illegal to use for any purpose, illegal to sell, or even illegal to merely possess.
Most countries have legislation which brings various drugs and drug-like
substances under the control of licensing systems. Typically this legislation covers any or all of the opiates, amphetamines, cannabinoids, cocaine, barbiturates, benzodiazepines, anesthetics, hallucinogenics, derivatives and a variety of more modern synthetic drugs. Unlicensed production, supply or possession is a
criminal offence.
Usually, however, drug classification under such legislation is not related simply to addictiveness. The substances covered often have very different addictive properties. Some are highly prone to cause physical dependency, while others rarely cause any form of compulsive need whatsoever. Also, under legislation specifically about drugs,
alcohol and
nicotine are not usually included.
Although the legislation may be justifiable on moral or public health grounds, it can make addiction or dependency a much more serious issue for the individual: reliable supplies of a drug become difficult to secure, and the individual becomes vulnerable to both criminal abuse and legal punishment.
It is unclear whether laws against illegal drug use do anything to stem usage and dependency. In jurisdictions where addictive drugs are illegal, they are generally supplied by
drug dealers, who are often involved with
organized crime
Organized crime (or organised crime) is a category of transnational, national, or local groupings of highly centralized enterprises run by criminals to engage in illegal activity, most commonly for profit. While organized crime is generally tho ...
. Even though the cost of producing most illegal addictive substances is very low, their illegality combined with the addict's need permits the seller to command a premium price, often hundreds of times the production cost. As a result, addicts sometimes turn to crime to support their habit.
United States
In the United States, drug policy is primarily controlled by the federal government. The Department of Justice's
Drug Enforcement Administration (DEA) enforces controlled substances laws and regulations. The Department of Health and Human Services'
Food and Drug Administration (FDA) serve to protect and promote public health by controlling the manufacturing, marketing, and distribution of products, like medications.
The United States' approach to substance abuse has shifted over the last decade, and is continuing to change. The federal government was minimally involved in the 19th century. The federal government transitioned from using taxation of drugs in the early 20th century to criminalizing drug abuse with legislations and agencies like the Federal Bureau of Narcotics (FBN) mid-20th century in response to the nation's growing substance abuse issue. These strict punishments for drug offenses shined light on the fact that drug abuse was a multi-faceted problem. The President's Advisory Commission on Narcotics and Drug Abuse of 1963 addressed the need for a medical solution to drug abuse. However, drug abuse continued to be enforced by the federal government through agencies such as the DEA and further legislations such as The
Controlled Substances Act (CSA), the
Comprehensive Crime Control Act of 1984, and Anti-Drug Abuse Acts.
In the past decade, there have been growing efforts through state and local legislations to shift from criminalizing drug abuse to treating it as a health condition requiring medical intervention. 28 states currently allow for the establishment of needle exchanges. Florida, Iowa, Missouri and Arizona all introduced bills to allow for the establishment of needle exchanges in 2019. These bills have grown in popularity across party lines since needle exchanges were first introduced in Amsterdam in 1983. In addition, AB-186 Controlled substances: overdose prevention program was introduced to operate
safe injection sites
Supervised injection sites (SIS) are medically supervised facilities designed to provide a hygienic environment in which people are able to consume illicit recreational drugs intravenously and prevent deaths due to drug overdoses. The legality o ...
in the City and County of San Francisco. The bill was vetoed on September 30, 2018, by California Governor Jerry Brown.
The legality of these sites are still in discussion, so there are no such sites in the United States yet. However, there is growing international evidence for successful safe injection facilities.
See also
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Addictive personality
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Dual diagnosis
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Physical dependence
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Risk factors in pregnancy
Complications of pregnancy are health problems that are related to pregnancy. Complications that occur primarily during childbirth are termed obstetric labor complications, and problems that occur primarily after childbirth are termed puerperal di ...
*
Self medication
Self-medication is a human behavior in which an individual uses a substance or any exogenous influence to self-administer treatment for physical or psychological conditions: for example headaches or fatigue.
The substances most widely used in sel ...
*
Stimulant maintenance Stimulant maintenance is the medical practice of prescribing stimulant substances such as cocaine or amphetamines to people who are dependent on these drugs. Supporters of stimulant maintenance believe that prescription offers legal alternatives t ...
*
Substance abuse
Substance abuse, also known as drug abuse, is the use of a drug in amounts or by methods which are harmful to the individual or others. It is a form of substance-related disorder. Differing definitions of drug abuse are used in public health, ...
Questionnaires
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Alcohol Use Disorders Identification Test
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CAGE questionnaire
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CRAFFT Screening Test
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Paddington Alcohol Test
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Severity of Alcohol Dependence Questionnaire
References
External links
American Society of Addiction Medicine websiteTrips Beyond Addiction, Living Hero Radio Show and Podcast special. With Dimitri Mobengo Mugianis, Bovenga Na Muduma, Clare S. Wilkins, Brad Burge, Tom Kingsley Brown, Susan Thesenga, Bruce K. Alexander, PhD ~ the voices of ex-addicts, researchers from The Multidisciplinary Association for Psychedelic Studies and Ibogaine/Iboga/Ayahuasca treatment providers sharing their experiences in breaking addiction with native medicines. January 2013
*National Institute on Drug Abuse:
NIDA for Teens: Brain and Addiction.
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pdf
{{Authority control
Substance-related disorders