Antihypertensives are a group of drugs designed to lower blood pressure and treat hypertension. They work in a variety of ways, helping to dilate blood vessels, reduce blood volume, or reduce the load on the heart. The main classes of antihypertensive agents include ACE (angiotensin-converting enzyme) inhibitors, beta-blockers, calcium channel blockers, diuretics, and angiotensin II receptor antagonists.
Each class of drugs has its own mechanism of action. For example, ACE inhibitors block the enzyme responsible for constricting blood vessels, and beta-blockers reduce heart rate and cardiac output strength. Antihypertensives are often prescribed in combination to achieve the best effect in controlling high blood pressure. It is important to follow the doctor’s recommendations when taking these drugs, as improper use or sudden withdrawal can cause sharp fluctuations in blood pressure and deterioration of health.