Sodium Channel Blocker

A sodium channel blocker is a medication that interferes with the movement of sodium ions into nerve and muscle cells. Since sodium flow is essential for generating electrical signals, these drugs reduce nerve excitability and activity. They are often used to treat conditions like pain, epilepsy, or certain heart rhythm disorders by calming overactive cells. By blocking sodium channels, these drugs help stabilize electrical activity in the body, preventing abnormal signals that cause symptoms or irregularities.