Antihypertensives are medications used to treat high blood pressure, also known as hypertension. They work by relaxing blood vessels, reducing blood volume, or affecting the heart's pumping ability. Common classes of antihypertensives include ACE inhibitors, beta-blockers, and calcium channel blockers. These medications help lower the risk of serious health issues, such as heart attacks, strokes, and kidney damage. Doctors often prescribe antihypertensives based on individual patient needs, considering factors like age, overall health, and any other medical conditions. Regular monitoring of blood pressure is essential to ensure the effectiveness of the treatment.