Arjunic Acid

PhytochemicalTriterpenoidBest with a meal

What is it

Arjunic acid is a pentacyclic triterpenoid concentrated in the bark of Terminalia arjuna, an Ayurvedic herb used for cardiovascular support. It is one of the main marker compounds used to standardize arjuna bark extracts.

Evidence for 1 use

AI-assisted evidence assessment — talk to your doctor before relying on any single supplement.

Heart failure symptom support (arjuna bark)

Limited Evidence

Small clinical trials of standardized arjuna bark, of which arjunic acid is a marker, show modest improvements in symptoms and exercise tolerance in stable heart failure.

How it works

In preclinical work, arjunic acid shows antioxidant, anti-inflammatory, and cardioprotective effects, including improvements in lipid handling and protection from ischemic injury in animal models. In Ayurvedic use it is consumed as part of whole bark or standardized extracts, not in isolation. Clinical evidence relates to arjuna bark overall rather than isolated arjunic acid. Several small randomized trials in heart failure and stable angina show modest improvements in symptoms and exercise tolerance.

Dosage

DSLD does not list a single standardized dose for isolated arjunic acid. Arjuna bark extracts standardized to arjunic acid (typically 1-3%) are dosed at 250-500 mg twice daily in many trials.

When and how to take it

Most studies dose arjuna with meals twice daily.

1 commercial form

Compare the main delivery options and what they’re best suited for.

Arjuna bark extract standardized to arjunic acid

Most common cardiovascular formulation.

Typically 1-3% arjunic acid

Safety

Arjuna bark is generally well tolerated short term. Mild GI upset and constipation are the most common side effects. Long-term safety in heart failure populations beyond a few months is less well established.

Who should be cautious

Avoid in pregnancy and breastfeeding without medical advice. People with heart disease should use arjuna only with cardiology guidance, especially alongside standard medications.

Interactions

Theoretical additive effects with antihypertensives, beta-blockers, and digoxin. Possible mild antiplatelet effects.

Frequently asked questions

Should I replace my heart medication with arjuna?⌄

No. Arjuna may complement standard care in some cases under medical supervision, but it should not replace proven therapies.

Is isolated arjunic acid more effective?⌄

Most evidence is for whole bark extracts. Isolated arjunic acid has not been extensively studied in humans.

References

Arjunic Acid on Wikidata — Wikidata link

Arjunic Acid (PubChem CID 182035) — PubChem link

Arjunic Acid on NIH DSLD (US supplement label database) — NIH Dietary Supplement Label Database link

Research on Arjunic Acid (PubMed search) — PubMed link

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Evidence-based·How we grade evidence

Disclaimer: These statements have not been evaluated by the FDA. This page is educational, not a substitute for personalized medical advice. Evidence grades are AI-assisted assessments — talk to your doctor before starting any new supplement, especially if you’re pregnant, breastfeeding, on medications, or managing a chronic condition.