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  • Title: Dose-titrated, double-blind, cross-over comparison of a selective beta-blocker and methyldopa in the treatment of hypertension.
    Author: Routledge PA, Zrinzo LV, Rao JG, Walden RJ, Davies DM, Rawlins MD.
    Journal: Eur J Clin Pharmacol; 1977 Mar 11; 11(3):159-62. PubMed ID: 323023.
    Abstract:
    The efficacy and toxicity of tolamolol and methyldopa in hypertensive patients has been compared by a dose-titrated, double-blind, cross-over study. Thirteen patients completed the trial. Within the dose ranges investigated (tolamolol - 300 mg/day - 900 mg/day; methyldopa - 750 mg/day - 2250 mg/day)both drugs produced significant falls in laying and standing, systolic and diastolic blood pressures. Although the hypotensive effects of methyldopa were more marked than tolamolol, these only achieved conventional (P less than 0.05) levels of significance for lying blood pressure. There were no objective changes in haematological or biochemical indices during treatment with either drug, but patients complained of tiredness, weak limbs and mouth dryness significantly more during methyldopa treatment, than during either placebo or tolamolol therapy.
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