Bidisomide's anti-arrhythmia effects. Bidisomide (5 mg/kg) reduces the number of premature ventricular complexes and the incidence of ventricular tachycardia and ventricular fibrillation similarly to Mexiletine (MXT) and Disopyramide (DSP) in rats with ventricular arrhythmias induced by coronary artery occlusion. After 5 minutes of coronary artery occlusion, the antiarrhythmic effect of 5 mg/kg Bidisomide was similar to the same dose of MXT and DSP in rats with ventricular arrhythmias caused by coronary reperfusion. All three drugs significantly slow the heart rate[1].