Abstract
1 The use of atenolol, a cardioselective beta-adrenoceptor antagonist, in the management of hyperthyroidism has been studied by comparing it with propranolol. 2 In a double-blind cross-over trial, atenolol (50 mg), propranolol (40 mg) and placebo 4 times daily for 1 week were compared in twenty-one hyperthyroid patients by sequential analysis. 3. Patients generally preferred atenolol or propranolol to placebo but this preference only achieved significance with propranolol. 4 Judged by their effect on the symptoms and signs of hyperthyroidism, both atenolol and propranolol were significantly better than placebo, but no distinction could be made between the two active compounds. 5 Atenolol and propranolol reduced mean heart rate by 29.8 and 27.1% respectively compared with placebo. 6 Atenolol appeared almost equally effective to propranolol in the management of the peripheral manifestations of hyperthyroidism.
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Selected References
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