Certain medications can be a cause of heart block. Heart block is a condition in which the electrical signals that control the heartbeat are disrupted, causing the heart to beat too slowly or irregularly. There are several types of heart block, including first-degree, second-degree, and third-degree heart block. Certain medications, such as beta-blockers, calcium channel blockers, and antiarrhythmic drugs, can affect the electrical conduction in the heart and cause heart block. Additionally, few medications that can cause electrolyte imbalances, such as diuretics, which too can contribute to heart block. eMedica, with its very low electric current of about 20 mA, increases the temperature of the blocked signal, which burns the deposited plaque (either made of cholesterol, calcium or fibrin) and clears the pathway of the electrical stimulation.