New 4-hydroxy-benzimidazole compounds of the formula: ##EQU1## wherein R.sub.1 is straight-chained or branched alkyl and R.sub.2 is hydrogen atom or lower alkyl And the pharmacologically compatible salts thereof; are outstandingly effective in the treatment and prophylaxis of cardiac and circulatory diseases, and provide substantially greater margins of safety than prior art adrenergic .beta.-receptor inhibitors.
新的
4-羟基
苯并咪唑化合物的
化学式如下:##EQU1## 其中R.sub.1是直链或支链烷基,R.sub.2是氢原子或低级烷基。这些化合物及其药理学兼容的盐,在心血管疾病的治疗和预防方面具有显著的疗效,并提供比先前的
肾上腺素能β-受体
抑制剂更大的安全保障。