Displaying 3 results of Disopyramide Impurities Disopyramide is a medication used to treat irregular heartbeats. However, during the production process, impurities may be introduced into the drug substance, which can affect its quality and potency. These impurities can include degradation products, residual solvents, and other chemical byproducts. It is important to control and monitor these impurities to ensure the safety and efficacy of the medication.