antihypertensive agent的意思|示意

Antihypertensive agents are drugs used to treat hypertension or high blood pressure. They work by either lowering the production of hormones that cause blood vessels to constrict, increasing the production of natural hormones that relax blood vessels, or by decreasing the absorption of sodium in the kidneys.

Antihypertensive agents are generally classified into four main categories -- diuretics, beta blockers, calcium channel blockers, and ACE inhibitors -- based on how they affect the body.

Diuretics increase the output of urine and reduce the amount of salt and water in the body, which helps to reduce blood pressure. Beta blockers work by blocking the action of certain hormones, such as adrenaline, which can cause hypertension. Calcium channel blockers work by blocking the entry of calcium ions into blood vessel walls, which leads to vasodilation and a decrease in blood pressure. ACE inhibitors inhibit the production of a hormone called angiotensin II which causes the blood vessels to constrict, and lead to hypertension.

In general, antihypertensive agents are well tolerated and are effective in reducing blood pressure in most people. Common side effects include headache, dizziness, nausea, and fatigue. It is important to remember to take the medication exactly as prescribed and to let your doctor know if you experience any side effects.

Antihypertensive agents are an important part of the treatment of high blood pressure and can help lower the risk of stroke and heart attack. If you have high blood pressure, talk to your doctor about taking an appropriate antihypertensive agent to help you manage your condition.