Zanidip is a brand name for the medication lercanidipine, which belongs to a class of drugs known as calcium channel blockers. It is primarily used in the management and treatment of hypertension (high blood pressure). Lercanidipine works by relaxing the blood vessels, allowing blood to flow more easily and thereby reducing the blood pressure. This action helps prevent strokes, heart attacks, and kidney problems, which are common complications associated with high blood pressure. Zanidip is usually prescribed when other medications have not been effective or have caused unacceptable side effects. It is taken orally, and its dosage varies depending on the patient's condition and response to treatment.