Definition of "muscle relaxant" [muscle relaxant]

• Any drug which affects skeletal muscle function and decreases the muscle tone. (noun)

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• "To name just one more reason that it’s a terrible idea to cut down forests: one-quarter of all our prescription drugs are derived from forests—rainforests in particular.3 Curare, an anesthetic and muscle relaxant used in surgery4; ipecac, for treating dysentery5; and quinine, for malaria6 are just a few examples."