title: Precipitous hypotension after nifedipine in pheochromocytoma: report of 2 cases.
abstract: Two patients with pheochromocytoma initially responded to oral or sublingual nifedipine with marked reduction in systolic blood pressure (range 50-160 mmHg) without concomitant increment in the heart rate or clinical consequences. This could possibly be due to the combination of hypovolemia and negative inotropism.
authors.affiliation: Department of Medicine, Faculty of Medicine, Prince of Songkhla University, Thailand.
authors.forename: D
authors.initials: D
authors.lastname: Tantawanichpisal
authors.forename: K
authors.initials: K
authors.lastname: Rujiwanichkul
authors.forename: T
authors.initials: T
authors.lastname: Yipintsoi
mesh_terms: D000310:Adrenal Gland Neoplasms / Q000188:drug therapy* / Q000503:physiopathology; D000328:Adult; D017809:Fatal Outcome; D005260:Female; D006801:Humans; D007022:Hypotension / Q000139:chemically induced*; D009543:Nifedipine / Q000009:adverse effects*; D010673:Pheochromocytoma / Q000188:drug therapy* / Q000503:physiopathology
chemical_list: D009543:Nifedipine