title: Letter: Reaction to phenoxybenzamine.
mesh_terms: D000368:Aged; D004336:Drug Antagonism; D006801:Humans; D006973:Hypertension / Q000188:drug therapy / Q000209:etiology; D007263:Infusions, Parenteral; D008297:Male; D010643:Phenoxybenzamine / Q000008:administration & dosage / Q000009:adverse effects* / Q000627:therapeutic use; D010673:Pheochromocytoma / Q000150:complications*; D011217:Practolol / Q000627:therapeutic use; D013575:Syncope / Q000139:chemically induced; D013610:Tachycardia / Q000139:chemically induced / Q000188:drug therapy
chemical_list: D010643:Phenoxybenzamine; D011217:Practolol