Astragaloside IV

PhytochemicalSaponin

What is it

Astragaloside IV is a triterpene saponin isolated from Astragalus membranaceus root. It is one of the most studied bioactive compounds in astragalus and is marketed in concentrated supplement form for cardiovascular, immune, and longevity applications.

Evidence for 2 uses

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

Diabetic kidney disease

Limited Evidence

Some Chinese trials suggest benefit as adjunct therapy in diabetic nephropathy.

Cardiovascular support

Mixed Evidence

Preclinical and some Chinese clinical evidence suggest benefits for heart failure and cardiac function; rigorous Western trials lacking.

How it works

Astragaloside IV has demonstrated cardioprotective, anti-inflammatory, antioxidant, immunomodulatory, and possible telomerase-activating effects in preclinical models. Mechanisms include modulation of NF-kB and PI3K/Akt signaling, inhibition of oxidative stress pathways, and enhancement of endothelial function. Clinical evidence in humans is limited compared to whole astragalus extract. Some Chinese clinical trials suggest benefits for heart failure, diabetic nephropathy, and pulmonary hypertension when used as part of multi-drug regimens.

Dosage

No established standard supplement dose. Studies have used 20-150 mg/day. Whole astragalus extract is more commonly used (3-6 g/day of dried root or equivalent).

When and how to take it

WHEN: Typically taken once or twice daily, with or without food. HOW: As capsule or tablet per product instructions.

2 commercial forms

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

Astragaloside IV isolate

Concentrated supplement form.

Low oral bioavailability; some products use enhanced delivery

Whole astragalus extract

More common and economical.

Contains AGS-IV plus other actives

Safety

Generally well tolerated in available studies. Long-term safety data are limited for isolated astragaloside IV.

Who should be cautious

Avoid in pregnancy and lactation due to insufficient data. People with autoimmune disease should consult a clinician due to immunomodulatory effects. Avoid before surgery.

Interactions

Theoretical interaction with immunosuppressants (may reduce effectiveness), anticoagulants (mild antiplatelet activity), and diuretics.

Frequently asked questions

Is astragaloside IV the same as TA-65?⌄

TA-65 is a proprietary cycloastragenol-containing extract from astragalus, related to but distinct from astragaloside IV.

Does astragaloside IV slow aging?⌄

It has telomerase-activating activity in cells, but human clinical evidence for anti-aging benefits is preliminary.

References

Astragaloside IV on NIH DSLD (US supplement label database) — NIH Dietary Supplement Label Database link

Research on Astragaloside IV (PubMed search) — PubMed link

Track Astragaloside IV with Pilora

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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.