Antagonism of inotropic responses of frog heart to epinephrine and acetylcholine.
D000109:Acetylcholine / Q000494:pharmacology*; D000818:Animals; D001001:Anura; D004837:Epinephrine / Q000494:pharmacology*; D006321:Heart / Q000187:drug effects*; D006801:Humans; D011898:Ranidae
D000109:Acetylcholine; D004837:Epinephrine
ACETYLCHOLINE/effects; EPINEPHRINE/effects; HEART/effect of drugs on