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Alkaloid obtained from opium, which contains 0.7-2.5%, but usually made from morphine. Used as an analgesic and antitussive; drug dependence (physical and psychic) may develop, but codeine is less liable to produce addiction than morphine; codeine is biotransformed to morphine, which accounts for most of codeine's effects.
[G. kōdeia, head, poppy head]
codeine/co·deine/ (ko´dēn) a narcotic alkaloid obtained from opium or prepared from morphine by methylation and used as the base or as the phosphate or sulfate salt as an opioid analgesic, antitussive, and antidiarrheal.
An alkaloid narcotic, C18H21NO3, derived from opium or morphine and used as a cough suppressant, analgesic, and hypnotic.
codeineToxicology An oral opioid analgesic with antitussive activity Effects Blocks pain messages to brain; ↓ central response Used for Pain; antitussive. See Opioids.
codeineAn alkaloid derived from opium, used to control moderate pain, to relieve unnecessary coughing and to check diarrhoea. Codeine is not a drug of addiction and is available without prescription. The drug is on the WHO official list. It is contained in various branded preparations such as Co-Codamol, Codafen Continus, Galcodine, Kapake, Migraleve, Solpadol, Tylex and Zapain.
Alkaloid obtained from opium; analgesic and antitussive; drug dependence may develop, but codeine is more addictive than morphine.
an alkaloid obtained from opium or prepared from morphine by methylation; used as the phosphate or sulfate salt for analgesia and as an antitussive.