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- What is valsartan, and how does it work (mechanism of action)?
- What brand names are available for valsartan?
- Is valsartan available as a generic drug?
- Do I need a prescription for valsartan?
- What are the side effects of valsartan?
- What is the dosage for valsartan?
- Which drugs or supplements interact with valsartan?
- Is valsartan safe to take if I'm pregnant or breastfeeding?
- What else should I know about valsartan?
What is the dosage for valsartan?
The usual dose of valsartan for adults with high blood pressure is 80 to 160 mg once daily. The maximum dose is 320 mg daily. Maximum blood pressure reduction occurs within 4 weeks. For congestive heart failure, the usual dose is 40 mg twice daily. The doses may be increased to 80-160 mg twice daily. The initial dose after a heart attack is 20 mg twice daily. The dose may be increased to 160 mg twice daily if tolerated without side effects.
Which drugs or supplements interact with valsartan?
Combining valsartan with potassium-sparing diuretics (for example., spironolactone (Aldactone), triamterene, amiloride), potassium supplements, or salt substitutes containing potassium may lead to hyperkalemia (elevated potassium in the blood) and in heart failure patients, it increases serum creatinine, a blood test used for monitoring function of the kidneys.
Combining valsartan or other ARBs with nonsteroidal anti-inflammatory drugs (NSAIDs) in patients who are elderly, fluid-depleted (including those on diuretic therapy), or with poor kidney function may result in reduced kidney function, including kidney failure. These effects are usually reversible. There have been reports that aspirin and other NSAIDs such as ibuprofen (Advil, Children's Advil/Motrin, Medipren, Motrin, Nuprin, PediaCare Fever, etc.), indomethacin (Indocin, Indocin-SR), and naproxen (Anaprox, Naprelan, Naprosyn, Aleve) may reduce the effects of ARBs.
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