what r anti hypertensive drugs?

Answer 1

Blood Vessels have blood in them which exerts a particular value of pressure on these Blood-vessles. There is a normal value to that pressure exerted on the walls of the Blood Vessels from within called Normal Blood Pressure (BP).
Normal BP values in Technical terms on an average:
Systolic (Heart Contraction) BP: 120
Diastolic (Heart Relaxation) BP: 80

When this pressure exerted by the blood on the walls of the vessels exceeds its normal value, there stands a danger of rupturing these walls/vessels (there are various reasons for this BP to increase) & to counter this effect Dr.s prescribe Anti-Hypertensive Drugs..
Various classes of Anti-Hypertensive Drugs have already been described in the above answers.

Answer 2

Anti Hypertensive drugs are drugs that lowers your blood pressure.

Answer 3

Definition

Antihypertensive drugs are medicines that help lower blood pressure.
Purpose

All antihypertensive agents lower blood pressure, although the mechanisms of action vary greatly. Within this therapeutic class, there are several subgroups. There are a very large number of drugs used to control hypertension, and the drugs listed below are representatives, but not the only members of their classes.
Description

The calcium channel blocking agents, also called slow channel blockers or calcium antagonists, inhibit the movement of ionic calcium across the cell membrane. This reduces the force of contraction of heart muscles and arteries. Although the calcium channel blockers are treated as a group, there are four different chemical classes, leading to significant variations in the activity of individual drugs. Nifedipine (Adalat, Procardia) has the greatest effect on the blood vessels, while verapamil (Calan, Isoptin) and diltiazem (Cardizem) have a greater effect on the heart muscle itself.

Peripheral vasodilators such as hydralazine (Apresoline), isoxuprine (Vasodilan), and minoxidil (Loniten) act by relaxing blood vessels.

There are several groups of drugs that act by reducing adrenergic nerve stimulation, the excitatory nerve stimulation that causes contraction of the muscles in the arteries, veins, and heart. These drugs include the beta-adrenergic blockers and alpha/beta adrenergic blockers. There are also non-specific adrenergic blocking agents.

Beta-adrenergic blocking agents include propranolol (Inderal), atenolol (Tenormin), and pindolol (Visken). Propranolol acts on the beta-adrenergic receptors anywhere in the body, and has been used as a treatment for emotional anxiety and rapid heart beat. Atenolol and acebutolol (Sectral) act specifically on the nerves of the heart and circulation.

There are two alpha/beta adrenergic blockers, labetolol (Normodyne, Trandate) and carvedilol (Coreg). These work similarly to the beta blockers.

Angiotensin-converting enzyme inhibitors (ACE inhibitors) act by inhibiting the production of angiotensin II, a substance that induces both constriction of blood vessels and retention of sodium, which leads to water retention and increased blood volume. There are 10 ACE inhibitors currently marketed in the United States, including captopril (Capoten), benazepril (Lotensin), enalapril (Vasotec), and quinapril (Acupril). The primary difference between these drugs is their onset and duration of action.

The ACE II inhibitors, losartan (Cozaar), candesartan (Atacand), irbesartan (Avapro), telmisartan (Micardis), valsartan (Diovan), and eprosartan (Teveten) directly inhibit the effects of ACE II rather than blocking its production. Their actions are similar to the ACE inhibitors, but they appear to have a more favorable side effect and safety profile.

In addition to these drugs, other classes of drugs have been used to lower blood pressure, most notably the thiazide diuretics. There are 12 thiazide diuretics marketed in the United States, including hydrochlorothiazide (Hydrodiuril, Esidrex), indapamide (Lozol), polythiazide (Renese), and hydroflumethiazide (Diucardin). The drugs in this class appear to lower blood pressure through several

Answer 4

These are for hypertension or Blood Pressure...

Answer 5

They are used to reduce a person's blood pressure. The newest type of anti-hypetensive include ACE (angiotensin converting enzyme) inhibitors which work on the body's fluid balance to drop blood pressure.

Answer 6

Drugs that reduce one's blood pressure

Answer 7

drugs that reduse hypertension. like rauvolfia.