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Int J Clin Pract. 1999 Apr-May;53(3):175-8.

The efficacy and safety of telmisartan compared to enalapril in patients with severe hypertension.

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  • 1Orange County Heart Institute & Research Center, CA 92868, USA.


This 8-week, open-label study compared the efficacy and safety of once-daily telmisartan, either alone or in combination with hydrochlorothiazide (HCTZ) and amlodipine, with a similar enalapril regimen in patients with severe hypertension. Clinically relevant reductions in supine systolic blood pressure/DBP were observed with telmisartan (14.6/13.2 mmHg) and enalapril (13.0/12.9 mmHg) monotherapy. Incremental reductions were seen with up-titration of monotherapy (telmisartan 8.1/7.4 and enalapril 9.2/7.7 mmHg), and the addition of HCTZ (telmisartan 14.9/8.7 and enalapril 8.0/6.7 mmHg), and amlodipine (telmisartan 8.0/6.5 and enalapril 10.5/6.4). After 8 weeks of treatment, supine DBP control was achieved in 55% and 35% of the patients on the telmisartan and enalapril regimens, respectively. Both treatment regimens were well tolerated. Telmisartan, a new angiotensin receptor blocker, is a safe and effective drug to use in combination for the treatment of patients with severe hypertension and proved at least as effective as the enalapril combination.

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