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Noun
methacholine
Mecholyl
Definition: parasympathomimetic drug (trademark Mecholyl) that stimulates secretions and smooth muscle activity
Definition: A choline derivative with parasympathomimetic activity that can induce bronchoconstriction in asthmatics and is used in tests of airway responsiveness; O-acetyl-β-methylcholine, C₈H₁₈NO₂⁺.