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  • Title: Effect of nadolol in treatment of hypertension.
    Author: Volicer L, Liang CS, Gavras H, Tifft CP, Kershaw GR, Gavras I, Griffith DL, Vukovitch R, Brunner HR.
    Journal: J Clin Pharmacol; 1979; 19(2-3):137-47. PubMed ID: 33998.
    Abstract:
    Nadolol, a new beta-adrenergic blocking agent, was administered orally in gradually increasing single daily doses to 13 hospitalized patients with essential hypertension. Maximal doses ranged from 200 to 480 mg/day. Blood pressure was reduced in nine patients and heart rate was decreased in 11 patients. The decrease in blood pressure was either partial or temporary in five of the nine patients who responded. Concomitant administration of the diuretic chlorthalidone decreased blood pressure in a previously unresponsive patient. Nadolol effectively inhibited isoproterenol-induced tachycardia and decreased cardiac output by 18 per cent. Plasma renin activity and plasma aldosterone concentration were not changed significantly by the treatment. Body weight was not altered significantly. Blood pressure response was independent of the pretreatment renin levels or the change in renin induced by nadolol; it was also independent of the changes in cardiac output and heart rate but was more pronounced in patients with milder baseline hypertension. The decline in serum concentration of nadolol was consistent with the drug's reported half-life of 12.2 hours. The results indicate that single daily doses of nadolol alone can reduce blood pressure significantly with minimal cardiodepressant effects and no important side effects. The effectiveness of nadolol may be enhanced by the addition of a diuretic.
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