Diovan

Diovan is a prescription drug used to treat several conditions related to the heart and blood vessels, such as high blood pressure and congestive heart failure, and also to help improve survival rates for people who have had a heart attack. Diovan works by causing the blood vessels of the heart to relax. This, in turn, makes the heart more efficient by letting more blood flow from the heart to the rest of the body. Diovan comes as a tablet taken once or twice daily, with or without food. Most people tolerate Diovan well, but there are some side effects, including a cough, diarrhea, and stomach pain.

 

What Is Diovan?

Diovan® (valsartan) is a prescription medicine that has been licensed to treat several conditions related to the heart and blood vessels. It is part of a class of drugs called angiotensin II receptor blockers, or ARBs for short.
 

Who Makes Diovan?

Diovan is manufactured by Novartis Pharmaceuticals.
 

What Is Diovan Used For?

Uses of Diovan include:
 
Diovan is not a cure for high blood pressure or congestive heart failure.
 
(Click Diovan Uses for more information on what Diovan is used for, including possible off-label uses.)
 

How Does Diovan Work?

Diovan is part of a class of drugs called angiotensin II receptor blockers.
 As the name implies, Diovan blocks angiotensin II receptors. This decreases the effectiveness of a chemical known as angiotensin II, which normally causes blood vessels to narrow (constrict). By blocking the effects of angiotensin II, Diovan causes blood vessels to relax, which can lower blood pressure.
 
By helping blood vessels relax, 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.
 

Diovan Effects

A blood pressure reading consists of two numbers -- for example: 120/80. The top number is known as the systolic blood pressure and the bottom number is the diastolic blood pressure. During clinical studies in people taking Diovan, systolic blood pressure (the top number) decreased by 6 to 9 mmHg on average and diastolic blood pressure (the bottom number) decreased by 3 to 6 mmHg on average. Certain factors, such as dose, affected how much the blood pressure dropped.
 
By lowering blood pressure, Diovan can decrease the risks that are seen with long-term high blood pressure (see Effects of High Blood Pressure).
 
For people with congestive heart failure, the effects of Diovan on the heart and blood vessels have been shown to decrease hospitalizations and loss of life.
 

When and How Do I Take Diovan?

Some general considerations for when and how to take Diovan include:
 
  • Diovan comes in tablet form. It is usually taken once or twice a day.
     
  • Diovan may be taken with or without food.
     
  • Diovan should be taken at the same time each day to maintain an even level of the medicine in your blood.
     
  • For Diovan to work properly, you have to take it as prescribed. Diovan will not work if you stop taking it.
     

Diovan Dosing

The dose of Diovan your healthcare provider recommends will vary depending on a number of factors, including:
 
  • The medical condition being treated
  • Your weight (for children)
  • Other medical conditions you may have
  • Other medications you may be currently taking
  • How you respond to Diovan.
     
As with any medication, do not adjust your Diovan dose unless your healthcare provider specifically instructs you to do so.
 
(Click Diovan Dosage for more information about dosing guidelines for Diovan.)
 

Side Effects of Diovan

As with any medicine, there are possible side effects with Diovan. However, not everyone who takes Diovan will experience side effects. In fact, most people tolerate Diovan well. When Diovan side effects do occur, they are often minor and either require no treatment or can easily be treated by you or your healthcare provider. Serious side effects are less common.
 
The most common side effects of Diovan include:
 
  • Infection with a virus, such as the common cold or flu
  • Dizziness
  • An increase in blood potassium levels
  • Cough
  • Fatigue
  • Stomach pain
  • Extremely low blood pressure
  • Diarrhea.
     
(Click Diovan Side Effects to learn about the specific side effects of Diovan, including serious side effects to look out for. You can also read about other possible side effects by going to:
 

Drug Interactions With Diovan

Diovan can potentially interact with a number of medicines.
 
(Click Diovan Interactions for more information about Diovan and these other medicines.)
 

Diovan: What Should I Tell My Healthcare Provider?

You should talk with your healthcare provider prior to taking Diovan if you have:
 
  • Heart disease
  • Liver disease
  • Kidney disease or kidney failure
  • Diabetes
  • Gallstones or other gallbladder problems
  • Any allergies, including allergies to other angiotensin II receptor blockers, foods, dyes, or preservatives.
     
Also, let your healthcare provider know if you are:
 
Tell your healthcare provider about all the medicines you are currently taking, including prescription and non-prescription medicines, vitamins, and herbal supplements.
 
Do not take any salt substitutes containing potassium or potassium supplements without first discussing it with your healthcare provider.
 
(Click Diovan Precautions and Warnings for more information on this topic, including information on who should not take Diovan.)
 

Overdose With Diovan

People who take too much Diovan may have overdose symptoms that can include an extremely low blood pressure or an increased heart rate.
 
If you happen to overdose on Diovan, seek medical attention immediately.
 
(Click Diovan Overdose for more information.)
 

Diovan Storage Methods

Diovan should be stored at room temperature, away from moisture and heat. Diovan tablets should be kept in an airtight container.
 
Keep Diovan and all medications out of the reach of children.
 

Diovan: What Should I Do If I Miss a Dose?

If you do not take your Diovan as scheduled, take your next dose as soon as you remember. If it is almost time for your next scheduled dose, skip the missed one and continue with normal dosing. Never take a double dose!
 

Diovan Strengths

Diovan tablets are available in several strengths, including:
 
  • Diovan 40 mg
  • Diovan 80 mg
  • Diovan 160 mg
  • Diovan 320 mg.
     

Diovan: Generic

Diovan is not currently available as a generic medicine.
 
(Click Generic Diovan for more information.)
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Written by/reviewed by: Kristi Monson, PharmD; Arthur Schoenstadt, MD
Last reviewed by: Kristi Monson, PharmD;