[Cost/benefit relations: therapy of hypertension].

Antihypertensive therapy improves the long-term prognosis of patients with mild to moderate essential hypertension and is able to prevent complications. This is also true for the elderly patient with hypertension. A considerable percentage of patients with mild essential hypertension can be adequately treated without drugs. If drug treatment is required, diuretics, beta-blockers, calcium antagonists, and ACE-inhibitors are the agents of first choice. For the individual patient, the appropriate drug should be chosen on the basis of efficacy, lack of side-effects, and depending upon additional diseases, such as cardiac failure, coronary heart disease and renal failure. Only if these selection criteria are fulfilled should differences in prices of the various groups of antihypertensive agents be considered.