title: Is phentolamine an alpha-adrenergic blocker?
mesh_terms: D000317:Adrenergic alpha-Antagonists / Q000494:pharmacology; D001794:Blood Pressure / Q000187:drug effects*; D001916:Brachial Artery; D002986:Clinical Trials as Topic; D003864:Depression, Chemical; D004357:Drug Synergism; D004837:Epinephrine / Q000494:pharmacology*; D006801:Humans; D008297:Male; D009130:Muscle, Smooth / Q000187:drug effects; D010646:Phentolamine / Q000494:pharmacology*; D011674:Pulse / Q000187:drug effects; D011941:Receptors, Adrenergic; D014666:Vasomotor System / Q000187:drug effects
chemical_list: D000317:Adrenergic alpha-Antagonists; D011941:Receptors, Adrenergic; D004837:Epinephrine; D010646:Phentolamine