Diovan works by decreasing the effectiveness of a chemical known as angiotensin II, which normally causes blood vessels to narrow (constrict). By blocking its effects, Diovan causes blood vessels to relax, which can
lower blood pressure.
Because of these effects, Diovan also increases the efficiency of the heart. This means that the heart does not have to work as hard and more blood can be pumped out to the rest of the body. Both of these effects are helpful for a person with congestive
heart failure.
For people with congestive heart failure, Diovan's effects on the heart and blood vessels have been shown to decrease hospitalizations and loss of life.
(Click Diovan for a more in-depth look at the effects of this drug, including information on how it works, general dosing guidelines, and what to know before starting treatment.)