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- W2031934509 abstract "The antiarrhythmic activity of iprindole was compared to that of imipramine in a variety of experimental arrhythmia models. Iprindole at 20 mg/kg i.v. showed efficacy in reverting ouabain- and aconitine-induced arrhythmias in pentobarbital anesthetized dogs, and at 15-30 mg/kg i.v. reduced the severity of the ventricular arrhythmias following acute coronary artery occlusion in anesthetized pigs. Imipramine (5-10 mg/kg i.v.) was also effective in reverting ouabain- and aconitine-induced arrhythmias, but appeared to exacerbate arrhythmias during coronary occlusion. In microelectrode experiments on isolated dog Purkinje fibers, iprindole reduced maximal upstroke velocity (Vmax) and action potential duration (characteristics of Class Ib antiarrhythmic agents) at concentrations greater than 1 microgram/ml. Significant decreases in Vmax occurred at lower iprindole concentrations when membrane potential was reduced by increasing external potassium from 4 to 10 mM, suggesting that electrical activity in depolarized cells may be selectively suppressed by iprindole. The present data indicate that iprindole may exert beneficial therapeutic effects in the treatment of cardiac arrhythmias, mediated, at least in part, through a Class I mechanism of action." @default.
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- W2031934509 date "1986-07-01" @default.
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- W2031934509 title "Efficacy of the antidepressant iprindole against experimental arrhythmias" @default.
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- W2031934509 doi "https://doi.org/10.1016/0014-2999(86)90735-1" @default.
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