Antihypertensive agents are medications used to lower high blood pressure, also known as hypertension. They work by relaxing blood vessels, reducing heart rate, or decreasing blood volume, which helps to improve blood flow and decrease the workload on the heart. Common classes of antihypertensive agents include diuretics, ACE inhibitors, beta-blockers, and calcium channel blockers. These medications are often prescribed to prevent complications associated with hypertension, such as heart disease, stroke, and kidney damage. Treatment plans may vary based on individual health needs, and it is essential for patients to follow their healthcare provider's recommendations for effective management of their blood pressure.