title: Oral phentolamine in angina pectoris.
mesh_terms: D000284:Administration, Oral; D000328:Adult; D000368:Aged; D000787:Angina Pectoris / Q000188:drug therapy*; D002986:Clinical Trials as Topic; D006801:Humans; D008875:Middle Aged; D010646:Phentolamine / Q000008:administration & dosage / Q000627:therapeutic use*; D005082:Physical Exertion; D010919:Placebos
chemical_list: D010919:Placebos; D010646:Phentolamine