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盐酸京他洛尔（sotalolbydrochloride）是一个强效非心脏选择性产肾上腺素能受体阻滞剂，无内在拟交感活性和膜稳定作用。与其他产阻滞剂不同的是，它延长心脏组织动作电位时程和不应期，延长体表心电图田问期，是一个有效的抗心律失常和抗颤动药。本品在欧美已被广泛用于口服
Sotalolbydrochloride is a potent non-cardiac selective adrenergic receptor blocker with no intrinsic sympathomimetic and membrane stabilizing effects. Unlike other blockers, it prolongs the action potential duration and refractory periods of the heart tissue, prolonging the duration of the body surface electrocardiogram and is an effective antiarrhythmic and anti-fibrillation drug. This product has been widely used in Europe and the United States orally