Ketazocine (
INN
Inns are generally establishments or buildings where travelers can seek lodging, and usually, food and drink. Inns are typically located in the country or along a highway; before the advent of motorized transportation they also provided accommo ...
), also known as ketocyclazocine, is a
benzomorphan
Benzomorphan is a chemical compound that is the base for a series of drugs which variably act on the opioid kappa and sigma receptors, including the following compounds:
* 5,9-DEHB
* 8-CAC
* Alazocine
* Anazocine
* Bremazocine
* Butinazocine ...
derivative used in
opioid receptor
Opioid receptors are a group of inhibitory G protein-coupled receptors with opioids as ligands. The endogenous opioids are dynorphins, enkephalins, endorphins, endomorphins and nociceptin. The opioid receptors are ~40% identical to somatostatin ...
research. Ketazocine, for which the receptor is named, is an
exogenous
In a variety of contexts, exogeny or exogeneity () is the fact of an action or object originating externally. It contrasts with endogeneity or endogeny, the fact of being influenced within a system.
Economics
In an economic model, an exogeno ...
opioid that binds to the
κ opioid receptor.
Activation of this receptor is known to cause sleepiness, a decrease in pain sensation and (potentially)
dysphoria
Dysphoria (; ) is a profound state of unease or dissatisfaction. It is the semantic opposite of euphoria. In a psychiatric context, dysphoria may accompany depression, anxiety, or agitation.
In psychiatry
Intense states of distress and unea ...
,
paranoia
Paranoia is an instinct or thought process that is believed to be heavily influenced by anxiety or fear, often to the point of delusion and irrationality. Paranoid thinking typically includes persecutory beliefs, or beliefs of conspiracy concer ...
, and
hallucinations
A hallucination is a perception in the absence of an external stimulus that has the qualities of a real perception. Hallucinations are vivid, substantial, and are perceived to be located in external objective space. Hallucination is a combinatio ...
. It also causes an increase in urine production because it inhibits the release of vasopressin. (
Vasopressin
Human vasopressin, also called antidiuretic hormone (ADH), arginine vasopressin (AVP) or argipressin, is a hormone synthesized from the AVP gene as a peptide prohormone in neurons in the hypothalamus, and is converted to AVP. It then travel ...
is an
endogenous
Endogenous substances and processes are those that originate from within a living system such as an organism, tissue, or cell.
In contrast, exogenous substances and processes are those that originate from outside of an organism.
For example, es ...
substance that assists in regulating fluid and electrolyte balance in the body and decreases the amount of water released into the urine.)
Unlike other opioids, substances that only bind to the κ receptor theoretically do not depress the
respiratory system
The respiratory system (also respiratory apparatus, ventilatory system) is a biological system consisting of specific organs and structures used for gas exchange in animals and plants. The anatomy and physiology that make this happen varies grea ...
.
The crystal structure of ketazocine was determined in 1983.
See also
*
Benzomorphan
Benzomorphan is a chemical compound that is the base for a series of drugs which variably act on the opioid kappa and sigma receptors, including the following compounds:
* 5,9-DEHB
* 8-CAC
* Alazocine
* Anazocine
* Bremazocine
* Butinazocine ...
*
Ethylketazocine
References
{{Opioidergics
Benzomorphans
Kappa-opioid receptor agonists
Ketones
Phenols
Synthetic opioids