- a white, crystalline, slightly bitter alkaloid, C18H21NO3, obtained from opium, used in medicine chiefly as an analgesic or sedative and to inhibit coughing.
Origin of codeine
Examples from the Web for codeia
Codeia, one of the alkaloids of opium, is strongly recommended by Tyson.Special Report on Diseases of the Horse
United States Department of Agriculture
Codeia often produces less disturbance than opium or morphine.
Codeia is left in solution, and is obtained in octahedral crystals by spontaneous evaporation.
The commercial muriate of morphia frequently contains 3% to 4% of codeia.
No drugs are more potent to this end than opium and its derivatives, and in particular morphia and codeia.
- 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: C 18 H 21 NO 3
Word Origin and History for codeia
alkaloid present in opium, 1838, from French codéine, coined, with chemical suffix -ine (2), from Greek kodeia "poppy head," related to kooz "prison," literally "hollow place;" kodon "bell, mouth of a trumpet;" koilos "hollow," from PIE root *kel- (see cell). Originally codeina; modern form is from 1881.
- An alkaloid narcotic derived from opium or morphine and used as a cough suppressant, analgesic, and hypnotic.methylmorphine
- An alkaloid narcotic derived from opium or morphine and used primarily as an analgesic and a cough suppressant. Chemical formula: C18H21NO3.