This trial is designed to study the efficacy of an amlodipine besylate/benazepril treatment
regimen versus an amlodipine treatment regimen in the treatment of severe hypertension.
- Diagnosis of severe hypertension
- Diastolic blood pressure (DBP) < 60 mm Hg
- Serum potassium < 3.5 or > 5.5 mEq/L in the absence of all potassium supplements
- Refractory hypertension defined as systolic blood pressure (SBP) ≥ 180 mmHg and/or
DBP ≥ 110 mmHg and unresponsive to triple-drug regimens
Other protocol-defined exclusion criteria may apply.