Antihypertensives are medications used to manage high blood pressure, also known as hypertension. They work by relaxing blood vessels, reducing heart rate, or decreasing the volume of blood in circulation. Common classes of antihypertensives include ACE inhibitors, beta-blockers, and calcium channel blockers, each with different mechanisms to help lower blood pressure. These medications are often prescribed to prevent complications associated with hypertension, such as heart disease, stroke, and kidney damage. Lifestyle changes, including a healthy diet and regular exercise, are also recommended alongside antihypertensive treatment to achieve optimal blood pressure control.