Modification of the antispasmodic actions of isoproterenol and papaverine by removal of external Na in the isolated rat rectum.
D000818:Animals; D066298:In Vitro Techniques; D007545:Isoproterenol / Q000494:pharmacology*; D008297:Male; D009119:Muscle Contraction / Q000187:drug effects*; D009126:Muscle Relaxation / Q000187:drug effects*; D009130:Muscle, Smooth / Q000502:physiology*; D010208:Papaverine / Q000494:pharmacology*; D051381:Rats; D012007:Rectum; D012964:Sodium / Q000494:pharmacology*
D012964:Sodium; D010208:Papaverine; D007545:Isoproterenol