title: Effects of several phosphodiesterase-inhibitors on guinea-pig myocardium.
mesh_terms: D000818:Animals; D003994:Bucladesine / Q000494:pharmacology; D004357:Drug Synergism; D006168:Guinea Pigs; D066298:In Vitro Techniques; D007545:Isoproterenol / Q000494:pharmacology; D009200:Myocardial Contraction / Q000187:drug effects*; D010208:Papaverine / Q000494:pharmacology; D010210:Papillary Muscles / Q000187:drug effects; D010726:Phosphodiesterase Inhibitors / Q000494:pharmacology*; D013268:Stimulation, Chemical; D013806:Theophylline / Q000494:pharmacology; D014970:Xanthines / Q000494:pharmacology
chemical_list: D010726:Phosphodiesterase Inhibitors; D014970:Xanthines; D003994:Bucladesine; D013806:Theophylline; D010208:Papaverine; D007545:Isoproterenol