Skip to content

Valsartan: Uses, Side Effects, and How to Take It

Published: July 22, 2026Updated: July 22, 2026

Valsartan is a prescription medicine in the angiotensin receptor blocker (ARB) family. It is used to treat high blood pressure, help manage heart failure, and reduce the risk of death after a heart attack in certain patients.

Quick summary

Valsartan helps lower blood pressure and protect the heart, but it can raise potassium and affect kidney function. Take it exactly as prescribed and ask your doctor or pharmacist about your personal risks and other medicines.

Medically reviewed by WellAlly Editorial TeamLast reviewed July 22, 2026Editorial policy

Key facts at a glance

ATC
C09CA03
Generic
Valsartan
Class
arb
Brands
Diovan
Availability
rx
Pregnancy
D
Lactation
caution
Half-life (h)
6
Onset (min)
60
Duration (h)
24
Routes
oral
Forms
tablet
Regions
CN, US, EU, JP
Monitoring
renal-function, blood-pressure, potassium

This page is for informational purposes only.

Do not use this information to diagnose yourself or to replace a physician's advice. Always consult a qualified healthcare provider before starting, stopping, or changing any medication. If you believe you are experiencing a medical emergency, call your local emergency number immediately.

Dosage and administration

adult (standard)tablet
Usual dose
80mg to 320mg once daily
Maximum
consult physician
Frequency
once daily
Instructions
Follow physician instructions
Duration limits
as prescribed
Monitoring
standard
pediatric (standard)tablet
Usual dose
1.3mg/kg once daily
Maximum
consult physician
Frequency
once daily
Instructions
Follow physician instructions
Duration limits
as prescribed
Monitoring
standard
geriatric (standard)tablet
Usual dose
40mg to 160mg once daily
Maximum
consult physician
Frequency
once daily
Instructions
Follow physician instructions
Duration limits
as prescribed
Monitoring
standard

Overdose information

Important overdose information
Toxic dose: Single dose above 1280mg may cause serious toxicity including severe hypotension
Chronic overdose: Prolonged use above recommended doses may lead to progressive hypotension, renal impairment, and hyperkalemia
Immediate actions
supportive care with IV fluids, monitor blood pressure and renal function, consider activated charcoal if within 1-2 hours of ingestion
Antidote
no specific antidote(treatment is supportive; no specific antidote exists for valsartan overdose)
Poison Control: 1-800-222-1222

Special Populations

9 groups
✗

pregnancy

first trimester
unsafe
FDA Category
D
Dose Adjustment

avoid use

Key Recommendations

discontinue use when pregnancy is detected; avoid use during pregnancy unless benefits outweigh risks to fetus

Monitor

regular fetal monitoring including ultrasound for fetal growth and amniotic fluid

Use of this medication in this population requires careful consideration of risks and benefits.

✗

pregnancy

second third trimester
contraindicated
FDA Category
D
Dose Adjustment

contraindicated

Key Recommendations

do not use during 2nd and 3rd trimesters; switch to alternative antihypertensive before planning pregnancy

Monitor

immediate discontinuation and thorough fetal assessment

Use of this medication in this population requires careful consideration of risks and benefits.

✗

lactation

breastfeeding
unsafe
FDA Category
N
Dose Adjustment

avoid use

Key Recommendations

discontinue breastfeeding or discontinue drug; valsartan passes into breast milk in small amounts

Monitor

monitor infant for hypotension

Use of this medication in this population requires careful consideration of risks and benefits.

⚠

geriatric

elderly 65 years
caution
FDA Category
N
Dose Adjustment

start at lower end of dosing range

Key Recommendations

initiate at 40mg daily; monitor renal function and blood pressure closely; increased sensitivity to blood pressure effects

Monitor

regular monitoring of renal function, blood pressure, and serum potassium

Use with caution and monitor for adverse effects.

⚠

pediatric_age

children 6 16 years
caution
FDA Category
N
Dose Adjustment

weight-based dosing

Key Recommendations

for children 6-16 years: initial dose 1.3mg/kg once daily (up to 40mg); titrate to maximum 2.7mg/kg once daily (up to 160mg); not recommended in children under 6 years

Monitor

monitor blood pressure, renal function, and serum potassium during treatment

Use with caution and monitor for adverse effects.

⚠

renal_impairment

mild moderate
caution
FDA Category
N
Dose Adjustment

no initial adjustment needed

Key Recommendations

use with caution; monitor renal function and potassium levels regularly

Monitor

baseline and periodic monitoring of serum creatinine and potassium

Use with caution and monitor for adverse effects.

⚠

renal_impairment

severe
caution
FDA Category
N
Dose Adjustment

reduce starting dose

Key Recommendations

use with extreme caution; start at 20-40mg daily; consider lower doses; avoid in patients with bilateral renal artery stenosis

Monitor

frequent monitoring of renal function and serum potassium required

Use with caution and monitor for adverse effects.

⚠

hepatic_impairment

mild moderate
caution
FDA Category
N
Dose Adjustment

no initial adjustment needed

Key Recommendations

use with caution; no dose adjustment needed for mild to moderate hepatic impairment

Monitor

monitor liver function tests periodically

Use with caution and monitor for adverse effects.

⚠

hepatic_impairment

severe
caution
FDA Category
N
Dose Adjustment

use with caution

Key Recommendations

use with caution in severe hepatic impairment; limited clinical data available

Monitor

monitor liver function and clinical status

Use with caution and monitor for adverse effects.

Statistics and clinical data

prescribingFDA
2023

FDA approval year

Value:1996

FDA approval date for Valsartan

drug_classWHO
2023

Drug class

Value:Angiotensin II Receptor Blocker (ARB)

Pharmacological classification

usageMedical guidelines
2023

Common uses

Value:Hypertension, heart failure, post-myocardial infarction treatment

Therapeutic indications

mechanismFDA
2023

Mechanism of action

Value:Angiotensin II receptor antagonist

Pharmacodynamic properties

Contraindications

Conditions and patient states where this medication should be avoided or used with caution.

Do not use (1)

ABSOLUTEhypersensitivity

Known allergy to this medication or its components

Use caution (1)

RELATIVEpregnancy

Consult healthcare provider for benefits vs risks assessment

Official drug label

WellAlly may earn a referral fee from linked resources at no extra cost to you. Editorial content is never influenced by commercial relationships.

This information is for educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment.

Medical Disclaimer

This content is for general informational and educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment. Always seek the guidance of a qualified healthcare provider with any questions you have about a medical condition, and never disregard professional medical advice or delay seeking it because of something you read here.

If you think you may have a medical emergency, call your local emergency number or go to the nearest emergency department immediately.

Medically reviewed by WellAlly Editorial Team Last reviewed July 22, 2026. · Read our editorial policy