title: Direct actions of prostaglandins E1, A1, F2  on myocardial contraction.
mesh_terms: D000818:Animals; D001001:Anura; D002118:Calcium / Q000494:pharmacology; D004155:Diphenhydramine / Q000494:pharmacology; D004305:Dose-Response Relationship, Drug; D006168:Guinea Pigs; D006321:Heart / Q000187:drug effects*; D006325:Heart Atria / Q000187:drug effects; D006339:Heart Rate / Q000187:drug effects*; D006352:Heart Ventricles / Q000187:drug effects; D006632:Histamine / Q000494:pharmacology; D009638:Norepinephrine / Q000008:administration & dosage / Q000494:pharmacology; D010210:Papillary Muscles / Q000187:drug effects; D011433:Propranolol / Q000494:pharmacology; D011453:Prostaglandins / Q000008:administration & dosage / Q000494:pharmacology*; D011817:Rabbits; D012110:Reserpine / Q000494:pharmacology; D013268:Stimulation, Chemical; D013618:Tachyphylaxis / Q000187:drug effects; D013997:Time Factors
chemical_list: D011453:Prostaglandins; D006632:Histamine; D012110:Reserpine; D004155:Diphenhydramine; D011433:Propranolol; D002118:Calcium; D009638:Norepinephrine