Drug-induced smooth muscle contraction with no change in the level of cyclic GMP.
D000818:Animals; D006152:Cyclic GMP / Q000378:metabolism*; D004386:Duodenum / Q000187:drug effects / Q000378:metabolism; D066298:In Vitro Techniques; D008297:Male; D009119:Muscle Contraction / Q000187:drug effects*; D009130:Muscle, Smooth / Q000187:drug effects / Q000378:metabolism*; D010208:Papaverine / Q000494:pharmacology; D000644:Quaternary Ammonium Compounds / Q000494:pharmacology; D051381:Rats; D012701:Serotonin / Q000494:pharmacology
D000644:Quaternary Ammonium Compounds; D012701:Serotonin; D010208:Papaverine; D006152:Cyclic GMP