Narcotic
Encyclopedia article; The Columbia Encyclopedia, Sixth Edition, 2009
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Religious Studies, Education, Psychology, History, Literature, Philosophy, Entire Library
...nervous system. The chief narcotic drugs are opium , its...Uses In small doses narcotics have valuable medical...anticonvulsant action; also, narcotics relieve pain, while...are strict controls on narcotic prescription and administration...Nevertheless, addiction to narcotics, especially heroin...