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Dietary supplement

Astragalus 500 mg Ingredients & Drug Interactions

by Nature's Answer

Astragalus 500 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 500 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 500 mg is a dietary supplement by Nature's Answer 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 500 mg by Nature's Answer

Ask about any prescription or over-the-counter medication and we check it for interactions with Astragalus 500 mg by Nature's Answer — and tell you which ingredient is responsible.

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HelloPharmacist Scorecard of Astragalus 500 mg by Nature's Answer

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.

Astragalus 500 mg is straightforward — it contains one active ingredient: astragalus, a traditional plant root used in herbal medicine. The capsule also holds a few inactive ingredients (cellulose, rice flour, and calcium silicate) that are just there to hold it together and fill out the capsule.

Does it work?

No specific claim
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
General wellness

This Astragalus product is marketed for general wellness, not a specific health condition, so there's no single claim to grade — see Astragalus's own graded uses on its monograph.

Why this rating?
  • The label markets general wellness (“promotes overall health and wellbeing”), not a specific health condition, so there is no single claim to grade against clinical-evidence data.

The evidence we hold on astragalus is limited. The data doesn't establish reliable support for hay fever, amenorrhea, aplastic anemia, angina, asthma, or beta-thalassemia.

If you're considering it for any of these or another condition, you'll want to talk with your doctor or pharmacist about what the research really shows and whether it's the right choice for you.

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 over the short term in healthy adults, but quality human safety data is limited, so long-term use isn't as well studied. Some people in clinical trials have reported dizziness, and intravenous forms have rarely caused rashes or temporary heart palpitations, though it's unclear whether astragalus itself caused these.

Pregnancy and breastfeeding are situations where the safety data isn't there — it's best to avoid astragalus until you've talked it over with your doctor or pharmacist.

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 you take this, double-check with your doctor or pharmacist if you're on immune-suppressing drugs (Moderate severity), lithium (Moderate severity), chemotherapy like cyclophosphamide (Moderate severity), or diabetes medications (Moderate severity). No interactions are documented beyond these categories for the ingredient we could check.

Check your own medication Run your meds through the checker above

The bottom line

Scorecard at a glanceFully disclosed formula marketed for general wellness rather than one specific gradeable purpose. Moderate medication interactions have been identified, and safety information is well characterized.

Astragalus might appeal to someone looking for a traditional immune-support supplement, but it's not a product you can just add on top of immunosuppressants, lithium, chemotherapy, or diabetes drugs without a conversation first. If you take any of those, or any prescription medication at all, run your list through the search tool below and then talk with your doctor or pharmacist before you start.

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 Apr 11, 2022.

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 500 mg, straight from the product label.

Brand Nature's Answer
Barcode (UPC) 083000161186
Net contents 90 Vegetarian Capsule(s)
Market status On market
Date entered into DSLD Apr 11, 2022
DSLD ID 264144
Product type Botanical
Supplement form Capsule
Dietary claims / uses All Other, Structure/Function
Intended target group(s) Vegan, Vegetarian, Adult (18 - 50 Years), Kosher, Gluten Free
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 500 mg by Nature's Answer, 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:
1 Capsule(s)
Maximum serving Sizes:
1 Capsule(s)
Servings per container
90
UPC/BARCODE
083000161186
IngredientAmount% DV
Astragalus500 mg--

Other ingredients: Cellulose, Rice Flour, Calcium Silicate

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.
Brand IP Statement(s)

Discover Nature’s Answer and trust the Difference... The True Nature of Our Standards goes way beyond the herb…

Nature's Answer Since 1972

Nature's Answer Discover Nature's Answer

Copyright 2018 Nature's Answer

Precautions

Prop. 65 Warning for California Residents Warning: Consuming this product can expose you to chemicals including lead, which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov/food.

Warning: Keep out of reach of children.

Do not use if safety seal is damaged or missing.

If pregnant, nursing or on medication, consult with your healthcare practitioner.

Storage

Store in a cool, dry place.

Formula

K Parve (Kosher)

Astragalus membranaceus

Seals/Symbols

K Parve (Kosher)

Formulation

Gluten Free

Promotes Overall health & Wellbeing

Vegan

FDA Statement of Identity

Dietary Supplement

Suggested/Recommended/Usage/Directions

Suggested use: As a dietary supplement take one (1) capsule 1-3 times a day with food or water.

FDA Disclaimer Statement

This statement has not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.

General Statements

For product information, call (800) 439-2324

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

See for yourself

Astragalus 500 mg by Nature's Answer label

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

Astragalus 500 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 500 mg by Nature's Answer

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

Serving size1 Capsule(s) Dosage formCapsule Servings per container90 Amounts shown are per serving.

Astragalus

Interacts with
208 drugs
500 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: Cellulose, Rice Flour, Calcium Silicate. These complete the product’s ingredient list but are not active constituents.

Interaction report

Astragalus 500 mg by Nature's Answer Drug Interactions

Want to check YOUR meds against Astragalus 500 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 500 mg interact with 208 drugs. Click any drug to see the details.

1 of the 1 ingredient in Astragalus 500 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 500 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 500 mg, from the product label.

Nature's Answer

See all Nature's Answer products
Name
Nature's Answer
Street Address
85 Commerce Drive
City
Hauppauge
State
NY
ZipCode
11788
Phone Number
(800) 439-2324
Web Address
www.naturesanswer.com
Pharmacist Counseling Corner

Astragalus 500 mg by Nature's Answer: Common Questions

Does Astragalus 500 mg by Nature's Answer interact with any medications?
Yes. Based on its ingredients, Astragalus 500 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 500 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 or nursing?
The safety data isn't there yet. The facts advise avoiding astragalus during pregnancy and while breastfeeding because there isn't enough reliable information. Talk with your doctor or pharmacist about what's right for you.
What's astragalus actually supposed to do?
Traditionally, astragalus is used as an immune-support supplement, and it does seem to stimulate immune function. However, the data we hold doesn't establish reliable evidence that it works for hay fever, asthma, heart conditions, anemia, or other specific conditions listed on the bottle.
Are there any side effects I should know about?
Most people tolerate it well short-term. A small number of people in studies have reported dizziness, and intravenous forms have rarely caused rashes or heart palpitations, though it's not always clear astragalus caused them. Quality long-term safety data is limited.
Does this product have fillers or other stuff I should know about?
Yes — in addition to the astragalus itself, the capsule contains cellulose, rice flour, and calcium silicate to hold it together. Those are standard, inert ingredients.

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

Not sure if Astragalus 500 mg is safe with your meds?

Our pharmacists answer your medication & supplement questions — free.

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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 500 mg label
Go deeper

The Full Monographs Behind Astragalus 500 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 500 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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