title: A comparison of betaxolol and nadolol on renal function in essential hypertension.
abstract: Betaxolol, a beta 1-selective adrenergic antagonist, and nadolol, a nonselective beta-adrenergic antagonist are both potent long-acting antihypertensive drugs. The effects of betaxolol on renal function have not been reported. The effects of nadolol on renal function are controversial. The current randomized double-blind study was designed to compare the effects of betaxolol and nadolol on glomerular filtration rate, assessed by creatinine and inulin clearances, and renal hemodynamics, assessed by p-aminohippurate clearance. Following a 4-week placebo run-in period, 15 patients with essential hypertension were randomized to a mean dose of 22 mg betaxolol for 12 weeks, and 12 patients with essential hypertension were randomized to a mean dose of 103 mg nadolol for 12 weeks. Results indicate that neither drug produced a clinically relevant effect on renal function. These findings are consistent with previously reported observations with other beta-adrenergic blocking drugs. We conclude that neither of the beta-adrenergic antagonists, betaxolol or nadolol, convey a specific renal pharmacologic advantage; both are equally efficacious and safe in the treatment of mild-to-moderate essential hypertension.
authors.forename: J H
authors.initials: JH
authors.lastname: Bauer
authors.forename: G P
authors.initials: GP
authors.lastname: Reams
authors.forename: A
authors.initials: A
authors.lastname: Lau
mesh_terms: D015784:Betaxolol; D001794:Blood Pressure / Q000187:drug effects; D001835:Body Weight / Q000187:drug effects; D002986:Clinical Trials as Topic; D004311:Double-Blind Method; D006801:Humans; D006973:Hypertension / Q000188:drug therapy* / Q000503:physiopathology; D007668:Kidney / Q000187:drug effects* / Q000503:physiopathology; D007677:Kidney Function Tests; D008297:Male; D008875:Middle Aged; D009248:Nadolol / Q000494:pharmacology* / Q000627:therapeutic use; D011412:Propanolamines / Q000494:pharmacology* / Q000627:therapeutic use; D011674:Pulse / Q000187:drug effects; D011897:Random Allocation; D012964:Sodium / Q000652:urine
chemical_list: D011412:Propanolamines; D009248:Nadolol; D012964:Sodium; D015784:Betaxolol