title: Potentiation of the inotropic effects of glucagon by theophylline.
mesh_terms: D000818:Animals; D002021:Buffers; D002415:Cats; D000242:Cyclic AMP; D004347:Drug Interactions; D004357:Drug Synergism; D005934:Glucagon / Q000494:pharmacology*; D066298:In Vitro Techniques; D007700:Kinetics; D009119:Muscle Contraction / Q000187:drug effects*; D010210:Papillary Muscles / Q000187:drug effects; D013696:Temperature; D013806:Theophylline / Q000494:pharmacology*
chemical_list: D002021:Buffers; D005934:Glucagon; D013806:Theophylline; D000242:Cyclic AMP