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倍他乐克(Betaloc.Metoprolol)是一种心脏选择性β_1受体阻滞剂.早在1972年临床试验资料已证明,该药使用安全,对高血压和心绞痛有肯定疗效.
Betaloc.Metoprolol is a cardioselective beta-1 blocker.As early as 1972 clinical trial data have proved that the drug is safe, with a positive effect on hypertension and angina pectoris.