Hypertension: Hypovase is indicated in the treatment of all grades of essential (primary) hypertension and all grades of secondary hypertension of varied aetiology. It can be used as the initial and sole agent or it may be employed in a treatment regimen in conjunction with a diuretic and/or other antihypertensive drug as needed for proper patient response. Congestive heart failure: Hypovase may be used alone or added to the therapeutic regimen in those patients with congestive heart failure who are resistant or refractory to conventional therapy with diuretics and/or cardiac glycosides. Raynaud's phenomenon and Raynaud's disease: Hypovase is indicated for the symptomatic treatment of patients with Raynaud's phenomenon and Raynaud's disease. Benign prostatic hyperplasia: Hypovase is indicated as an adjunct in the symptomatic treatment of urinary obstruction caused by benign prostatic hyperplasia (BPH). It may therefore be of value in patients awaiting prostatic surgery.