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Dietary supplement

Astragalus 400 mg Ingredients & Drug Interactions

by Solaray

Astragalus 400 mg label
See full label image
Capsule Category: Botanical
Most serious interaction: Moderate
Clinical methodology reviewed by · Updated Sep 16, 2026 · Label data from the NIH DSLD
What is this page for?

First and foremost: checking Astragalus 400 mg against your medications. The heart of this page is the interaction checker and the full interaction report — how this product’s ingredients may interact with prescription and over-the-counter medicines you may be taking.

Around that, we add a pharmacist’s high-level view of the product as a whole — what’s inside, the evidence for its stated use, how transparent the label is, and what safety data exists — so you can see the full picture in one place. It’s educational information from our licensed clinical databases and the clinical staff at HelloPharmacist — not medical advice — and we don’t sell or endorse products. Our editorial policy

The interaction bottom line Most serious interaction: Moderate

Astragalus 400 mg is a dietary supplement by Solaray with 1 active ingredient. Its ingredients are commonly taken for immune support, colds and flu, upper respiratory infections.Based on those ingredients, 208 medications have a known interaction with it, the most serious rated moderate. The ingredients most likely to interact are Astragalus. Use the checker below to test your specific medication, or read the full HelloPharmacist Interaction Report.

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Check Your Meds Against Astragalus 400 mg by Solaray

Ask about any prescription or over-the-counter medication and we check it for interactions with Astragalus 400 mg by Solaray — and tell you which ingredient is responsible.

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HelloPharmacist Scorecard of Astragalus 400 mg by Solaray

Our pharmacy team’s full take, with four database checks built into the cards below — a summary of what is known, not a grade of the product itself.

From our pharmacy team — supplement deep dive

Generated from HelloPharmacist’s pharmacist-curated databases and editorial rules · Last generated Jul 16, 2026

What’s inside

Full disclosure
Ingredient Transparency · database check
Full

Every active ingredient lists its own amount on the label.

Why this rating?
  • The label discloses an exact amount for 1 of its 1 active ingredient.
  • No proprietary blends here — you can verify the dose of every single component.

Solaray's Astragalus 400 mg is a single-ingredient supplement. The active ingredient is astragalus, a plant root used in traditional medicine.

The capsule also contains gelatin and magnesium stearate (a common filler and flow agent).

Does it work?

Couldn't assess
Evidence for Intended Use · database check
By FDA rules, dietary supplements can’t claim to treat, cure, or prevent disease — so labels speak in careful marketing language. We discern each product’s intended use from its name, label claims, and label statements, then grade the clinical evidence for that use. How these ratings are computed
Not assessable

This is a single-ingredient Astragalus product and its label doesn't state a use — see Astragalus's own graded uses on its monograph.

Why this rating?
  • We looked at the product name, claims, and label statements and couldn't find a stated purpose to grade.

The evidence we hold on astragalus is limited. We have insufficient reliable evidence to rate its use for allergic rhinitis (hay fever), amenorrhea, aplastic anemia, angina, asthma, beta-thalassemia, and other conditions.

If you're considering astragalus for a specific health purpose, talk with your doctor or pharmacist — they can help you weigh whether the limited evidence makes sense for your situation.

The evidence, ingredient by ingredient Astragalus

How safe is it?

Well-documented data
Safety Information · database check
Well characterized

Adverse-effect, pregnancy, and general safety data are on file for most of these ingredients.

Why this rating?
  • We hold adverse-effect (side-effect) data for 1 of the 1 matched ingredient.
  • Pregnancy & breastfeeding safety ratings cover 1 of 1.
  • General safety write-ups exist for 1 of 1.
  • Remember: this measures how much safety information exists. Thin data is not the same as being safe.

Astragalus is generally well tolerated when taken short-term by healthy adults, but high-quality human safety data is sparse. Some clinical trials have reported dizziness and rare reports of angina-like chest pain with astragalus, though it's unclear whether the herb caused these or they happened by chance.

Intravenous forms have caused temporary dizziness, rash, and itching in some people. There isn't enough reliable safety data to recommend astragalus during pregnancy or while breastfeeding.

If you're pregnant or nursing, talk with your doctor or pharmacist before using it.

Side effects, ingredient by ingredient Astragalus

Meds to double-check

Moderate interaction found
Known Interaction Concern · database check
Moderate identified

The most serious documented interaction for these ingredients is Moderate. Check your medications for a personalized result.

Why this rating?
  • 1 of the 1 matched ingredient can interact with medications — Astragalus.
  • The most serious interaction on file is rated Moderate.
  • Some involve high-stakes drug classes: immunosuppressants / transplant drugs; diabetes medications; lithium.
  • For scale: 208 individual medications appear in the full list. A big number alone doesn't make a product dangerous — what matters is whether YOUR medication is on it, so run yours through the interaction checker on this page.

Before starting astragalus, double-check with your doctor or pharmacist if you take immunosuppressants, lithium, blood sugar-lowering drugs, or cyclophosphamide. The interactions are all Moderate severity but could affect how well your medications work or raise their levels in your body.

Check your own medication Run your meds through the checker above

The bottom line

Scorecard at a glanceFully disclosed formula with no assessable stated purpose. Moderate medication interactions have been identified, and safety information is well characterized.

Astragalus might appeal to you if you're exploring immune support and don't take immunosuppressants, lithium, blood sugar medications, or cyclophosphamide. If you do take any of those, check with your doctor or pharmacist first — the interactions are theoretical but worth ruling out.

Either way, the evidence for astragalus's effectiveness for most conditions isn't well established yet.

Educational only — not medical advice; always confirm with your pharmacist. Our editorial policy · How we use AI

Assessment coverage: 1 of 1 active ingredient matched to our full ingredient reviews (monographs). Based on the product label dated Oct 1, 2012.

This Scorecard evaluates available label information, ingredient evidence, and known medication-safety considerations. It does not independently verify product identity, purity, potency, contamination, or manufacturing quality. How these ratings are computed

At a glance

General information

Key facts about Astragalus 400 mg, straight from the product label.

Brand Solaray
Net contents 180 Easy To Swallow Capsule(s)
Market status On market
Date entered into DSLD Oct 1, 2012
DSLD ID 13310
Product type Botanical
Supplement form Capsule
Dietary claims / uses All Other
Intended target group(s) Adult (18 - 50 Years)
From the label
Everything in this section is reproduced from the manufacturer’s own product label — it’s the label speaking, not HelloPharmacist. We show it so you can see exactly what the maker states; we don’t verify or endorse those statements.

Supplement Facts

The label details for Astragalus 400 mg by Solaray, sourced from the NIH Dietary Supplement Label Database.

Supplement Facts

Daily Value (DV) Target Group(s):
Adults and children 4 or more years of age
Minimum serving Sizes:
2 Capsule(s)
Maximum serving Sizes:
2 Capsule(s)
Servings per container
90
IngredientAmount% DV
Total Carbohydrates1 g1%
Astragalus800 mg--

Other ingredients: Gelatin Capsule, Magnesium Stearate

Tap any ingredient to jump to its full detail below.

Label statements
These statements are the manufacturer’s wording, reproduced from the product label — the label is saying it, not HelloPharmacist. We don’t verify or endorse them.
Precautions

Keep out of the reach of children. Not for use by persons under the age of 18.

Consult a licensed health care practitioner before using this product, especially if you are pregnant or nursing.

WARNING: Use only as directed.

This product contains natural or other ingredients, one or more of which is listed by the State of California as a reproductive toxicant. For more information, see the Prop 65 brochure available from your retailer or at www.nutraceutical.com/notices.

FDA Statement of Identity

DIETARY SUPPLEMENT

Formula

ASTRAGALUS MEMBRANACEUS 400 MG PER CAPSULE

Suggested/Recommended/Usage/Directions

DIRECTIONS: Take two capsules up to three times daily, with a meal or glass of water.

Storage

Store in a cool, dry place.

General Statements

DISCUSSION: Astragalus is valued for its tonic and adaptogenic effects. It is one of the most popular herbs in China today.

SOLARAY GUARANTEES that NO ingredients other than those listed on this label have been added to this product.

CAPSULE SIZE: 0

Brand IP Statement(s)

(C)MMVII

Is this label outdated? Report a formula or label change and our pharmacy team will review it.

See for yourself

Astragalus 400 mg by Solaray label

The label scan from the NIH Dietary Supplement Label Database. Tap to enlarge.

Astragalus 400 mg label

Label images are published by the NIH Dietary Supplement Label Database for the version of this product on file. Always read your actual product label.

View the full label (PDF)
What’s inside

The Ingredients in Astragalus 400 mg by Solaray

This is the 1 active ingredient this product is made of. Select it to open its full monograph.

Serving size2 Capsule(s) Dosage formCapsule Servings per container90 Amounts shown are per serving.

Astragalus

Interacts with
208 drugs
800 mg per serving

Astragalus is a root used for centuries in traditional Chinese medicine, mainly to support the immune system and help the body cope with stress. While...

Astragalus monograph & interactions

Other (inactive) ingredients: Gelatin Capsule, Magnesium Stearate. These complete the product’s ingredient list but are not active constituents.

Interaction report

Astragalus 400 mg by Solaray Drug Interactions

Want to check YOUR meds against Astragalus 400 mg?

Ask about interactions with your drugs in plain English — “Can I take it with lisinopril?” — and we find you the answer in seconds, ingredient by ingredient.

 Go to the checker
208Drugs
208 Moderate

Ingredients driving the most interactions

Astragalus 208

Individual Drug Interactions

The ingredients in Astragalus 400 mg interact with 208 drugs. Click any drug to see the details.

1 of the 1 ingredient in Astragalus 400 mg interact with drugs. Each result below shows which ingredient is responsible. Astragalus

Each ingredient & the kinds of drugs it affects

For each ingredient in Astragalus 400 mg with known interactions, here are the types of medications it can affect. Open any type for the detail — or search your exact drug in the checker above.

Astragalus4 drug types · 208 drugs

Antidiabetes Drugs

Theoretically, taking astragalus with antidiabetes drugs might increase the risk of hypoglycemia.
Clinical research in humans shows that astragalus might have hypoglycemic effects. Theoretically, taking astragalus, especially in combination with other hypoglycemic agents, might increase the risk of hypoglycemia.

Likelihood Probable Evidence A
Cyclophosphamide

Theoretically, astragalus might interfere with cyclophosphamide therapy.
Evidence regarding the effect of astragalus on immunosuppression caused by cyclophosphamide is conflicting. Some animal research suggests that astragalus reverses cyclophosphamide-induced immunosuppression. However, other animal research shows no effect.

Likelihood Possible Evidence D
Immunosuppressants

Theoretically, astragalus might interfere with immunosuppressive therapy.
Astragalus seems to stimulate immune function. Theoretically, taking astragalus might decrease the effects of immunosuppressive therapy.

Likelihood Possible Evidence D
Lithium

Theoretically, astragalus might increase levels and adverse effects of lithium.
Animal research suggests that astragalus has diuretic properties. Theoretically, due to this diuretic effect, astragalus might reduce excretion and increase levels of lithium.

Likelihood Probable Evidence D
Astragalus full monograph & interactions
The maker

Brand information

Manufacturer and brand details for Astragalus 400 mg, from the product label.

Solaray

See all Solaray products
Name
Nutraceutical Corp.
Web Address
www.nutraceutical.com
Pharmacist Counseling Corner

Astragalus 400 mg by Solaray: Common Questions

Does Astragalus 400 mg by Solaray interact with any medications?
Yes. Based on its ingredients, Astragalus 400 mg has a known interaction with 208 medications. Use the checker to see how it interacts with a specific drug.
How can one product interact with so many drugs?
Astragalus 400 mg contains a single active ingredient, and that one ingredient can interact with many different medications on its own. We check it against each medication and show the mechanism responsible.
Where does this information come from?
The product label data comes from the NIH Dietary Supplement Label Database (DSLD); the interaction data is built on the Natural Medicines database and reviewed by HelloPharmacist pharmacists.
Can I take this while I'm pregnant?
There isn't enough reliable safety data on astragalus during pregnancy. The safety data advises against it. Talk with your doctor or pharmacist about whether it's right for you.
Can I take this while breastfeeding?
There isn't enough reliable safety data on astragalus while breastfeeding. The safety data advises against it. Check with your doctor or pharmacist before using it.
What does astragalus actually do?
Astragalus is traditionally used as an immune-supporting herb, and some research suggests it may stimulate immune function. However, we don't have enough reliable evidence to say it works for specific conditions like hay fever, asthma, or anemia.
Are there any common side effects?
Short-term use in healthy adults is generally well tolerated. Rare reports in clinical trials include dizziness and, in one case, chest pain symptoms, though it's unclear whether astragalus caused them. High-quality safety data is limited.
Does this product contain any fillers?
Yes. Besides the active astragalus, the capsule contains gelatin and magnesium stearate (a flow agent to help with manufacturing).
Why do I need to check my blood sugar medications?
Research shows astragalus might lower blood sugar. If you take diabetes medications that already lower blood sugar, combining them could raise your risk of low blood sugar (hypoglycemia). Talk with your doctor or pharmacist about whether it's safe for you.

Written and reviewed by the HelloPharmacist editorial staff. Our editorial policy

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Label information is sourced from the NIH Dietary Supplement Label Database and reflects the product version on file; always read your actual product label. This page is for education only and is not a substitute for professional medical advice. Confirm with your pharmacist or doctor before combining supplements and medications.

Astragalus 400 mg label
Go deeper

The Full Monographs Behind Astragalus 400 mg’s Ingredients

Every ingredient we hold a full HelloPharmacist monograph for — uses, evidence, safety, and the complete interaction list.

Herb & supplement monograph

Astragalus

Interacts with 208 drugs

Astragalus is a root used for centuries in traditional Chinese medicine, mainly to support the immune system and help the body cope with stress. While early studies are interesting, strong h...

Read the full Astragalus monograph →
Sources

Sources & How We Checked

Astragalus 400 mg's label data comes from the NIH Dietary Supplement Label Database; the ingredient interaction data is from the Natural Medicines database, reviewed by our pharmacists.

Content is written and reviewed by licensed HelloPharmacist pharmacists. See our data sources and editorial standards for how this information is built and checked.

The 13 references behind this product’s interaction data

Every citation that drives the interaction findings for this product’s ingredients, from the evidence-graded Natural Medicines (TRC Healthcare) database. Open an ingredient to browse its citations — links open the study on PubMed or the publisher’s site.

Astragalus 13 references
  1. Upton R, ed. Astragalus Root: Analytical, quality control, and therapeutic monograph. Santa Cruz, CA: American Herbal Pharmacopoeia. 1999:1-25.
  2. Khoo KS, Ang PT. Extract of astragalus membranaceus and ligustrum lucidum does not prevent cyclophosphamide-induced myelosuppression. Singapore Med J 1995;36:387-90.
  3. Chu DT, Wong WL, Mavligit GM. Immunotherapy with Chinese medicinal herbs. II. Reversal of cyclophosphamide-induced immune suppression by administration of fractionated Astragalus membranaceus in vivo. J Clin Lab Immunol 1988;25:125-9.
  4. Sun Y, Hersh EM, Lee SL, et al. Preliminary observations on the effects of the Chinese medicinal herbs Astragalus membranaceus and Ligustrum lucidum on lymphocyte blastogenic responses. J Biol Response Mod 1983;2:227-37..
  5. Ma J, Peng A, Lin S. Mechanisms of the therapeutic effect of astragalus membranaceus on sodium and water retention in experimental heart failure. Chin Med J (Engl) 1998;111:17-23.
  6. Matkovic Z, Zivkovic V, Korica M, et al. Efficacy and safety of Astragalus membranaceus in the treatment of patients with seasonal allergic rhinitis. Phytother Res 2010;24:175-81.
  7. Zhang, J. G., Yang, N., He, H., Wei, G. H., Gao, D. S., Wang, X. L., Wang, X. Z., and Song, G. Y. [Effect of Astragalus injection on plasma levels of apoptosis-related factors in aged patients with chronic heart failure.]. Chin J Integr.Med 2005;11(3):18 PubMed
  8. Chen, H. W., Lin, I. H., Chen, Y. J., Chang, K. H., Wu, M. H., Su, W. H., Huang, G. C., and Lai, Y. L. A novel infusible botanically-derived drug, PG2, for cancer-related fatigue: a phase II double-blind, randomized placebo-controlled study. Clin Invest PubMed
  9. Tian H, Lu J, He H, et al.The effect of Astragalus as an adjuvant treatment in type 2 diabetes mellitus: A (preliminary) meta-analysis. J Ethnopharmacol. 2016;191:206-215. doi: 10.1016/j.jep.2016.05.062. PubMed
  10. Hong KF, Liu PY, Zhang W, Gui DK, Xu YH. The Efficacy and Safety of Astragalus as an Adjuvant Treatment for Type 2 Diabetes Mellitus: A Systematic Review and Meta-Analysis. J Integr Complement Med 2023. PubMed
  11. Chan KW, Kwong ASK, Tsui PN, et al. Add-on astragalus in type 2 diabetes and chronic kidney disease: A multi-center, assessor-blind, randomized controlled trial. Phytomedicine 2024;130:155457. PubMed
  12. Han X, Yu T, Chen X, Du Z, Yu M, Xiong J. Effect of Astragalus membranaceus on left ventricular remodeling in HFrEF: a systematic review and meta-analysis. Front Pharmacol 2024;15:1345797. PubMed
  13. Jing P, Hongzheng H, Zhenqi WU, Meijuan Z, Zuojing LI, Gang C. Long-term efficacy and safety of Huangqi ()-based Traditional Chinese Medicine in diabetic peripheral neuropathy: a Meta-analysis of randomized controlled trials. J Tradit Chin Med 2024;44(2):

See these in context on the Astragalus monograph →

Parts of this content are provided by the Therapeutic Research Center, LLC.

DISCLAIMER: Currently this does not check for drug-drug interactions. This is not an all-inclusive comprehensive list of potential interactions and is for informational purposes only. Not all interactions are known or well-reported in the scientific literature, and new interactions are continually being reported. Input is needed from a qualified healthcare provider including a pharmacist before starting any therapy. Application of clinical judgment is necessary.

© 2021 Therapeutic Research Center, LLC

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