The drug is prescribed to treat hypertension (high blood pressure). In addition, it helps to prevent heart attacks, strokes, and heart failure.

IUPAC name: 2-[4-[[4-methyl-6-(1-methyl benzimidazol-2-yl)-2-propyl benzimidazole-1-yl]methyl]phenyl]benzoic acid

Drug class: Angiotensin II receptor blocker

Route of administration: Oral 

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Is it a drug that needs a prescription? YES

Is it an OTC drug? NO

Mechanism of action

This medication is an angiotensin II receptor blocker. It works by lowering blood pressure by relaxing and widening your blood vessels (veins and arteries) and allowing blood to flow more smoothly and the heart to pump blood more readily.      

Side effects 

The side effects of valsartan may include dizziness, headache, sinus pain, back pain, congestion, sore throat, diarrhea, abdominal/stomach pain, elevated potassium level in the blood, exhaustion.


 If you are pregnant, do not use this medicine. Consult your doctor if you become pregnant while taking this drug since it might cause damage or even death to the developing fetus.

Do not use this medicine with aliskiren (direct renin inhibitor) if you have diabetes. 


Before using this medication, take the following precautions and notify your doctor:

If you are allergic to it or to other angiotensin receptor blockers, or if you have other allergies,

If you are taking any other medication (prescribed, non-prescribed, or herbal products),

If you have or have ever had cardiac disease, hepatic disease, renal disease, dehydration, biliary obstruction, or a high blood potassium level, and if you are on a low-sodium diet,

Your potassium levels might go up if you use this medicine. Avoid potassium-containing items.

If you have undergone any type of surgery,

While taking this medication, limit your alcohol usage since it increases your chances of developing blurred vision, dizziness, or drowsiness. It may also cause a loss of alertness.

You should be aware that dehydration, vomiting, excessive perspiration, and diarrhea can lower blood pressure, which can lead to fainting and dizziness.

Consult your doctor if you are breastfeeding.

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