= compound containing the fundamental morphine or thebaine structure possessing some affinity to any, or all, of the opioid receptor subtypes Examples are heroin, buprenorphine and naltrexone
Inducing sleep; somniferous; narcotic; hence, anodyne; causing rest, dullness, or inaction; as, the opiate rod of Hermes
a class of codeine-derived, controlled narcotics, such as Tylenol #3, Percocet (oxycodone), Darvon (propoxyphene) and methadone; used to manage severe cases of Restless Legs Syndrome and Periodic Limb Movement Disorder
{i} narcotic drug containing opium; anything which soothes or causes sleepiness or dullness of the senses; pharmaceutical substance which has properties similar to opium and its derivatives