title: Phentolamine and beta-adrenergic receptors.
mesh_terms: D000318:Adrenergic beta-Agonists / Q000494:pharmacology; D000319:Adrenergic beta-Antagonists / Q000494:pharmacology; D000328:Adult; D001794:Blood Pressure / Q000187:drug effects; D006339:Heart Rate / Q000187:drug effects; D006801:Humans; D006973:Hypertension / Q000188:drug therapy; D008297:Male; D008875:Middle Aged; D010646:Phentolamine / Q000037:antagonists & inhibitors*; D011433:Propranolol / Q000494:pharmacology*; D011941:Receptors, Adrenergic
chemical_list: D000318:Adrenergic beta-Agonists; D000319:Adrenergic beta-Antagonists; D011941:Receptors, Adrenergic; D011433:Propranolol; D010646:Phentolamine