Valsartan

Prescription ·Strong evidence ·Reviewed May 2026

Valsartan is an ARB with evidence from the Val-HeFT and VALIANT trials for heart failure and post-MI management. It is also a key component of the combination drug sacubitril/valsartan (Entresto), which has revolutionized heart failure treatment.

What it's good for
  • Effective blood pressure reduction2,3
  • Reduces hospitalizations in heart failure (Val-HeFT)6,7
  • Non-inferior to captopril post-MI (VALIANT)7,5
  • Well-tolerated alternative for ACE inhibitor-intolerant patients
What to watch for
  • Dizziness
  • Hyperkalemia
  • Hypotension
  • Pregnancy
  • Hypersensitivity to valsartan1,2

The bottom line

Evidence rating strong. Most-documented uses: effective blood pressure reduction, reduces hospitalizations in heart failure (val-heft), non-inferior to captopril post-mi (valiant). 10 sources indexed (2010–2024), with 4 interaction records on file.

The science

How it works, mechanistically.

Core mechanism

Selectively blocks the AT1 receptor, preventing the vasoconstrictive, aldosterone-releasing, and growth-promoting effects of angiotensin II. Does not inhibit ACE or affect bradykinin, resulting in better tolerability regarding cough. Reduces preload, afterload, and cardiac remodeling in heart failure.6

Class
Angiotensin II Receptor Blocker (ARB)
Dosing

Dosing & protocol.

Common range
40–320 mg once daily (as prescribed by your physician)
Recommended form
Oral tablet or capsule

Can be taken with or without food; food reduces Cmax by ~40% and AUC by ~50%, but clinical significance is minimal at steady state

Depletions

What it depletes.

Nutrients this medication can lower over time, and what to replace.

Zinc

Mild

ARB therapy can modestly increase urinary zinc losses in some users, though typically less than ACE inhibitors.

Replace Zinc PicolinateMonitor Serum zincOnset Usually over weeks to months
Safety

Full safety detail.

Side effects

  • Dizziness
  • Hyperkalemia
  • Hypotension
  • Headache
  • Fatigue
  • Diarrhea
  • Renal impairment

Contraindications

  • Pregnancy
  • Hypersensitivity to valsartan1,2
  • Concurrent aliskiren in diabetic patients
  • Severe hepatic impairment
Interactions

Interaction records.

SeriousConflict

Potassium

Valsartan blocks AT1 receptors, reducing aldosterone and potassium excretion. Potassium supplementation creates hyperkalemia risk.

Recommendation: Avoid potassium supplements with valsartan unless prescribed with close monitoring.

SeriousCaution

Lithium Orotate

Valsartan reduces sodium reabsorption through AT1 receptor blockade and lowers glomerular filtration, which causes the kidney to retain lithium. Multiple case reports describe prescription-lithium patients developing toxicity within weeks of starting or increasing valsartan, sometimes at previously safe doses. Lithium Orotate doses are smaller, but the same renal handling applies and the margin to neurotoxicity is narrow.

Recommendation: Avoid Lithium Orotate while taking valsartan. If you must combine them, keep the dose low, stay well hydrated, and ask your prescriber to check a serum lithium level after 1-2 weeks. Hold the supplement during any vomiting, diarrhea, or fever.

ModerateCaution

Zinc

A systematic review of zinc and antihypertensive therapy reported that valsartan reduced erythrocyte and plasma zinc concentrations in treated hypertensives. The effect is smaller than with sulfhydryl-containing ACE inhibitors but still meaningful over chronic use. Symptoms of zinc deficiency include altered taste, slow wound healing, hair loss, and reduced immune function.

Recommendation: If you take valsartan long term, a modest zinc supplement (15-30 mg/day) or a multivitamin containing zinc is reasonable, especially if you notice altered taste or recurrent infections. Take zinc with food to limit GI upset.

InfoSynergy

Garlic Extract

Garlic Extract lowers blood pressure modestly. When combined with the ARB valsartan, the effects are additive, which can help patients with uncontrolled hypertension but may produce mild hypotension if blood pressure is already at goal.

Recommendation: If your blood pressure is already well controlled on valsartan, monitor at home before and after starting Garlic Extract. Typical aged garlic doses are 600-1200 mg/day. Tell your prescriber so your valsartan dose can be adjusted if needed.

Sources

Sources, by evidence tier.

Numbered references. Citations throughout the page link here.

Meta-analyses & systematic reviews

4

Randomized controlled trials

1
Keep exploring

Deep dives & adjacent profiles.

This page is educational. Do not start, stop, or change a supplement or medication based on it without checking with a qualified healthcare professional.

Use this with your stack

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