Disopyramide, is a class Ia antiarrhythmic agent, which blocks the fast sodium channels, thus serving as a membrane stabilizing agent. It decreases the myocardial excitability and upstroke velocity, and reduces the disparity in refractory between normally perfused and infarcted myocardium. It also possesses anticholinergic, peripheral vasoconstrictive, and negative inotropic effects but no effect on alpha- or beta-adrenergic receptors.
Use this medication precisely as recommended by your physician. Follow the prescription of your doctor carefully.
The medication dose given by your physician is based on your health conditions, other medications or food supplements taken, and your reaction to the treatment. To diminish risks for adverse effects, do not increase your dosage, thus take it regularly, or take it as instructed by your physician. Adverse events may still happen even at usual prescription dosages.
If your physician requests you to use this drug consistently, take it regularly to get the most benefits from it. To make you remember it better, take it at a fixed time every day.
Your doctor may need to modify your dosages to ease your symptoms or if you develop adverse reactions.
