Description
Valsartan belongs to a family of medications known as angiotensin II receptor blockers. These medications are used to lower mild-to-moderate high blood pressure. Valsartan is also used to treat chronic heart failure or to reduce the risk of death after a heart attack for people who cannot use another type of medication called an angiotensin-converting enzyme inhibitor.
Angiotensin II is a chemical that the body releases to cause the constriction of blood vessels. Valsartan blocks the action of angiotensin II, resulting in the relaxation of the blood vessels. This relaxation causes the blood pressure to drop. The full effects of valsartan are usually seen within 4 weeks. Valsartan may be used alone or in combination with a diuretic (water pill).
To treat high blood pressure, the recommended starting dose of valsartan is 80 mg once daily. Reductions in blood pressure are often seen within 2 weeks, and the full effects on blood pressure are seen in about 4 weeks. Your doctor may recommend a dose increase if your blood pressure remains too high. The maximum recommended dose is 320 mg daily. A diuretic may also be added to help reduce blood pressure.
To treat heart failure, the recommended starting dose is 40 mg twice daily. This dose is then increased gradually to a maximum recommended dose of 160 mg twice daily.
After a heart attack, the recommended starting dose of valsartan is 20 mg twice daily. Your doctor may increase the dose slowly over 1 to 2 weeks to a target dosage of 160 mg twice daily if tolerated. Other medications, such as beta-blockers, may be taken in addition to valsartan to further reduce the risk of another heart attack.
