title: Effects of phentolamine on electrophysiologic properties of isolated canine purkinje fibers.
mesh_terms: D000200:Action Potentials / Q000187:drug effects; D000317:Adrenergic alpha-Antagonists / Q000494:pharmacology; D000818:Animals; D004285:Dogs; D004594:Electrophysiology; D006329:Heart Conduction System / Q000187:drug effects / Q000502:physiology*; D007700:Kinetics; D008564:Membrane Potentials / Q000187:drug effects; D008839:Microelectrodes; D010646:Phentolamine / Q000008:administration & dosage / Q000494:pharmacology*
chemical_list: D000317:Adrenergic alpha-Antagonists; D010646:Phentolamine