Blockade with propranolol of the positive inotropic action of serotonin in the dog.
D000818:Animals; D001794:Blood Pressure / Q000187:drug effects*; D004285:Dogs; D004336:Drug Antagonism; D006321:Heart / Q000187:drug effects*; D009119:Muscle Contraction / Q000187:drug effects; D011433:Propranolol / Q000494:pharmacology*; D012701:Serotonin / Q000494:pharmacology*
D012701:Serotonin; D011433:Propranolol