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N-甲基小檗胺能明显地抑制离体豚鼠心房收缩力及对抗强心甙的正性肌力作用,其作用与钙阻断剂维拉帕米(Verapamil)相似,但较弱。
N-methyl berbamine can significantly inhibit the atrial contractility of isolated guinea pigs and the positive inotropic effect against cardiac palpitations. The effect is similar to that of the calcium blocker Verapamil, but it is weaker.