Currently in clinical practice, the main mechanisms of action of drugs commonly used to lower hypertension are, for example, diuretics, whose mechanism is mainly to reduce vascular resistance, also help to reduce the body’s sodium concentration and reduce the volume of extracellular fluid, thereby lowering blood pressure. For example, calcium channel blockers, representative drugs include amlodipine and felodipine, the mechanism of lowering blood pressure is mainly through the reduction of intracellular calcium ion content and relaxation of vascular smooth muscle, thus playing a role in lowering blood pressure, β-adrenergic receptor blockers, representative drugs include bisoprolol and propranolol, these drugs can reduce cardiac output, inhibit renin release, inhibit the activity of the sympathetic nervous system at different levels, and also increase prostacyclin synthesis. It can also increase the synthesis of prostacyclin, thus lowering blood pressure by this mechanism. In addition, the representative drugs of angiotensin-converting enzyme inhibitors are captopril, the antihypertensive mechanism of these drugs is to inhibit angiotensin, so that the conversion of angiotensin I to angiotensin II is reduced, thus producing vasodilation, and also to reduce aldosterone secretion, which helps to further reduce blood pressure.