O-823 is a drug which is a
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 ...
derivative that is used in scientific research. It is described as a mixed agonist/antagonist at the cannabinoid
receptor
Receptor may refer to:
* Sensory receptor, in physiology, any structure which, on receiving environmental stimuli, produces an informative nerve impulse
*Receptor (biochemistry), in biochemistry, a protein molecule that receives and responds to a ...
CB1, meaning that it acts as an antagonist when co-administered alongside a more potent CB
1 agonist, but exhibits weak partial agonist effects when administered by itself.
References
Cannabinoids
Benzochromenes
Phenols
Alkyne derivatives
Nitriles
{{cannabinoid-stub