codeine (kō`dēn), alkaloid found in opium opium, substance derived by collecting and drying the milky juice in the unripe seed pods of the opium poppy , Papaver somniferum. Opium varies in color from yellow to dark brown and has a characteristic odor and a bitter taste.
..... Click the link for more information. . It is a narcotic narcotic, any of a number of substances that have a depressant effect on the nervous system. The chief narcotic drugs are opium , its constituents morphine and codeine , and the morphine derivative heroin .

See also drug addiction and drug abuse .
..... Click the link for more information. whose effects, though less potent, resemble those of morphine morphine, principal derivative of opium , which is the juice in the unripe seed pods of the opium poppy , Papaver somniferum. It was first isolated from opium in 1803 by the German pharmacist F. W. A.
..... Click the link for more information. . An effective cough suppressant, it is mainly used in cough medicines. Like other narcotics, codeine is addictive. See drug addiction and drug abuse drug addiction and drug abuse, chronic or habitual use of any chemical substance to alter states of body or mind for other than medically warranted purposes.
..... Click the link for more information. .

codeine

Heterocyclic compound, a naturally occurring alkaloid found in opium, used in medicine as a cough suppressant and analgesic drug. It exerts its effects by acting on the central nervous system (brain and spinal cord). Chemically it is methylmorphine, the methyl ether of morphine, an alkaloid of the phenanthrene type; its action is weaker than that of morphine, and it is less likely to lead to drug addiction.

codeine

a white crystalline alkaloid prepared mainly from morphine and having a similar but milder action. It is used as an analgesic, an antidiarrhoeal, and to relieve coughing. Formula: C₁₈H₂₁NO₃

codeine [′kō‚dēn]

(pharmacology)

C₁₈H₂₁NO₃An alkaloid prepared from morphine; used as mild analgesic and cough suppressant.

codeine (redirected from codeine sulfate/codeine phosphate)

codeine

codeine
(redirected from codeine sulfate/codeine phosphate)