Comparative haemodynamic effects of labetalol, timolol, prazosin and the combination of tolamolol and prazosin

摘要

1 Four groups of patients with previously untreated essential hypertension in WHO stage I were treated either with timolol (n = 16), or prazosin (n = 13) or prazosin plus tolamolol (n = 12), or labetalol (n = 15).