Originally, agents that caused somnolence or induced sleep; now, any derivative, natural or synthetic, of opium or morphine or any substance that has their effects. Narcotics have potent analgesic effects associated with significant changes in mood and behaviour, and with the potential for dependence and tolerance following repeated administration.

(12 Dec 1998)

narcotic blockade, narcotic hunger, narcotic reversal < Prev | Next > narcotine, narcotism, nard, nardoo

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