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Dietary supplement

Neem 500 mg Ingredients & Drug Interactions

by Herbal Secrets

Neem 500 mg label
See full label image
Capsule Category: Botanical
Most serious interaction: Moderate
Clinical methodology reviewed by · Updated Sep 30, 2026 · Label data from the NIH DSLD
What is this page for?

First and foremost: checking Neem 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

Neem 500 mg is a dietary supplement by Herbal Secrets with 1 active ingredient. Its ingredients are commonly taken for skin conditions, dental and gum health, antimicrobial and antiparasitic.Based on those ingredients, 1,013 medications have a known interaction with it, the most serious rated moderate. The ingredients most likely to interact are Neem. Use the checker below to test your specific medication, or read the full HelloPharmacist Interaction Report.

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Check Your Meds Against Neem 500 mg by Herbal Secrets

Ask about any prescription or over-the-counter medication and we check it for interactions with Neem 500 mg by Herbal Secrets — and tell you which ingredient is responsible.

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HelloPharmacist Scorecard of Neem 500 mg by Herbal Secrets

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 Oct 1, 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.

This product contains one active ingredient: neem leaf extract at 500 mg per capsule. Neem is a traditional plant used in Ayurvedic medicine, and it's included here for its potential benefits in oral and skin health.

The capsule also contains hydroxypropyl methylcellulose, an inactive ingredient that serves as the capsule material.

Does it work?

Moderate evidence
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
Moderate

Some clinical evidence supports this product's ingredients for its stated purpose, but it isn't conclusive.

Why this rating?
  • The label markets this product for: immune system health and digestive support.
  • We looked for evidence on: Dental plaque, Gingivitis, Dyspepsia, Intestinal parasite infection, antimicrobial support, detoxification.
  • The strongest evidence on file: Neem is rated "Possibly Effective" for Dental plaque (Natural Medicines).
  • Also on file: Neem is rated "Possibly Effective" for Gingivitis.
  • Also on file: Neem is rated "Insufficient Reliable Evidence To Rate" for Dyspepsia, Intestinal parasite infection.

The evidence on neem is mixed. It's rated possibly effective for two uses: gingivitis (gum inflammation) and head lice.

It's also possibly effective for reducing dental plaque. For acne and a parasitic skin infection called tungiasis, the evidence isn't strong enough yet to say whether it works.

If you're considering neem for one of the stronger uses—like gum health or lice—talk with your doctor or dentist first to see if it fits your situation.

The evidence, ingredient by ingredient Neem

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.

Neem leaf preparations are generally well tolerated when taken orally short-term in adults, though high-quality safety studies haven't been done. When applied to skin, neem also seems well tolerated in both children and adults, though a small number of people have reported contact dermatitis (skin irritation).

The main caution: neem oil and seed extracts can be toxic if swallowed, and neem oil in particular has caused serious problems in infants and young children. Rare but serious oral side effects in adults include cardiac irregularities (ventricular fibrillation, cardiac arrest), kidney damage, and hemolysis (breakdown of red blood cells)—one case involved a person with a genetic blood condition who drank large amounts of neem tea daily.

Neem should not be used during pregnancy, as it may affect fertility and the developing baby. There isn't enough safety data for breastfeeding, so it's best avoided if you're nursing.

If you're pregnant, planning pregnancy, or breastfeeding, talk with your doctor or midwife before considering neem.

Side effects, ingredient by ingredient Neem

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 — Neem.
  • The most serious interaction on file is rated Moderate.
  • Some involve high-stakes drug classes: immunosuppressants / transplant drugs; diabetes medications.
  • For scale: 1,014 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 taking Neem 500 mg, talk with your doctor or pharmacist if you take antidiabetes drugs (neem may lower blood sugar too much), immunosuppressants after a transplant, or any medication metabolized by CYP1A2, CYP3A4, CYP2C9, CYP2C8 enzymes, or transported by P-glycoprotein—a very broad range that includes many common drugs. Because the enzyme interactions haven't been seen in people yet but are theoretically possible, it's important to review your specific medications with your healthcare provider.

Check your own medication Run your meds through the checker above

The bottom line

Scorecard at a glanceFully disclosed formula with some supporting evidence for its stated purpose. Moderate medication interactions have been identified, and safety information is well characterized.

Neem may be worth considering if you're looking into natural support for gum health, dental plaque, or lice—evidence suggests it possibly helps. However, it interacts with a large number of medications through liver and kidney enzyme pathways, and it can lower blood sugar.

If you take any prescription drugs, especially diabetes or transplant medications, check your list with your doctor or pharmacist before starting. Pregnant and nursing people should avoid it.

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 Sep 25, 2024.

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 Neem 500 mg, straight from the product label.

Brand Herbal Secrets
Barcode (UPC) 810180028509
Net contents 120 Veggie Capsule(s)
Market status On market
Date entered into DSLD Sep 25, 2024
DSLD ID 313280
Product type Botanical
Supplement form Capsule
Dietary claims / uses All Other, Structure/Function
Intended target group(s) Adult (18 - 50 Years), Dairy 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 Neem 500 mg by Herbal Secrets, 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 Vcap(s)
Maximum serving Sizes:
1 Vcap(s)
Servings per container
120
UPC/BARCODE
810180028509
IngredientAmount% DV
Neem500 mg--

Other ingredients: Hydroxypropyl Methylcellulose

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.
Formula

Azadirachta indica or Neem leaf has been valued as a traditional Ayurvedic herb used for a variety of benefits. Neem supports immune system health as it works to detoxify and cleanse the body of waste. Neem also supports overall digestive health. Neem is known for its antimicrobial and antibacterial properties which helps supports overall skin health.

Made with Natural Neem

Suggested/Recommended/Usage/Directions

Suggested Use: As a dietary supplement, adults take one (1) vegetarian capsule twice daily, preferably after meals. For better results it should be taken with warm water.

Precautions

Caution: Do not exceed recommended dose.

Pregnant or nursing women, children under 18, and individuals with a known medical condition should consult a physician before using this or any dietary supplement.

Keep out of reach of children.

Do not use if safety seal is damaged or missing.

FDA Disclaimer Statement

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

General Statements

Visit us online @amazingnutrition.com

Formulation

100% Natural

Traditional ayurvedic herb Supports healthy immune function Promotes digestive health Supports skin health

Contains no: shellfish, egg, fish, peanuts, milk, soy, tree nuts or wheat.

Seals/Symbols

Made in the USA

GMP Good Manufacturing Practice Quality Product

FDA Statement of Identity

Natural Dietary Supplement

Storage

Store in a cool, dry place.

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

See for yourself

Neem 500 mg by Herbal Secrets label

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

Neem 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 Neem 500 mg by Herbal Secrets

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

Serving size1 Vcap(s) Dosage formCapsule Servings per container120 Amounts shown are per serving.

Neem

Interacts with
1,013 drugs
500 mg per serving

Neem is a tree from India used for centuries in traditional medicine, especially for skin, dental, and antimicrobial purposes. Some small studies are...

Neem monograph & interactions

Other (inactive) ingredients: Hydroxypropyl Methylcellulose. These complete the product’s ingredient list but are not active constituents.

Interaction report

Neem 500 mg by Herbal Secrets Drug Interactions

Want to check YOUR meds against Neem 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
1,013Drugs
1,013 Moderate

Ingredients driving the most interactions

Neem 1,013

Individual Drug Interactions

The ingredients in Neem 500 mg interact with 1,013 drugs. Click any drug to see the details.

1 of the 1 ingredient in Neem 500 mg interact with drugs. Each result below shows which ingredient is responsible. Neem

Each ingredient & the kinds of drugs it affects

For each ingredient in Neem 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.

Neem7 drug types · 1,013 drugs

Antidiabetes Drugs

Neem might increase the risk of hypoglycemia when taken with antidiabetes drugs.
Some clinical research shows that neem can lower blood glucose levels in adults with type 2 diabetes, including those already taking metformin.

Likelihood Possible Evidence D
Cytochrome P450 1A2 (Cyp1A2) Substrates

Theoretically, neem leaf extract might increase the levels and clinical effects of CYP1A2 substrates.
In vitro research shows that neem leaf extract inhibits CYP1A2 enzymes. So far, this reaction has not been reported in humans.

Likelihood Possible Evidence D
Cytochrome P450 2C8 (Cyp2C8) Substrates

Theoretically, neem leaf extract might increase the levels and clinical effects of CYP2C8 substrates.
In vitro research shows that neem leaf methanol extract inhibits CYP2C8 enzymes. So far, this reaction has not been reported in humans.

Likelihood Possible Evidence D
Cytochrome P450 2C9 (Cyp2C9) Substrates

Theoretically, neem leaf extract might increase the levels and clinical effects of CYP2C9 substrates.
In vitro research shows that neem leaf methanol extract inhibits CYP2C9 enzymes. So far, this reaction has not been reported in humans.

Likelihood Possible Evidence D
Cytochrome P450 3A4 (Cyp3A4) Substrates

Theoretically, neem leaf extract might increase the levels and clinical effects of CYP3A4 substrates.
In vitro research shows that neem leaf methanol extract inhibits CYP3A4 enzymes. So far, this reaction has not been reported in humans.

Likelihood Possible Evidence D
Immunosuppressants

Theoretically, neem might decrease the effectiveness of immunosuppressants.
Animal research suggests that neem might have immunostimulant effects.

Likelihood Possible Evidence D
P-Glycoprotein Substrates

Theoretically, neem leaf extract might increase the levels and clinical effects of P-glycoprotein substrates.
In vitro research shows that neem leaf methanol extract inhibits renal P-glycoprotein transport activity. So far, this reaction has not been reported in humans.

Likelihood Possible Evidence D
Neem full monograph & interactions
The maker

Brand information

Manufacturer and brand details for Neem 500 mg, from the product label.

Herbal Secrets

See all Herbal Secrets products
Name
Herbal Secrets
Street Address
629 Grove Street
City
Jersey City
State
NJ
ZipCode
07310
Web Address
amazingnutrition.com
Pharmacist Counseling Corner

Neem 500 mg by Herbal Secrets: Common Questions

Does Neem 500 mg by Herbal Secrets interact with any medications?
Yes. Based on its ingredients, Neem 500 mg has a known interaction with 1,013 medications. Use the checker to see how it interacts with a specific drug.
How can one product interact with so many drugs?
Neem 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.
Is neem safe to use while I'm pregnant?
No—neem is rated likely unsafe in pregnancy because it may affect fertility and harm the developing baby. If you're pregnant or planning pregnancy, avoid this product and talk with your doctor about safer options.
Can I use neem oil instead of neem leaf?
This product contains neem leaf extract, not oil. Neem oil is different and can be toxic if swallowed—it's caused serious problems in infants and young children. Don't swap products without talking to your pharmacist or doctor first.
Does neem really work for gum disease?
The evidence suggests it possibly helps with gingivitis (gum inflammation) and dental plaque, but it's not proven. If you have gum disease, ask your dentist whether neem makes sense as part of your care plan.
What should I watch for if I take neem with my diabetes medication?
Neem can lower blood sugar on its own, so combined with diabetes drugs it could drop your blood sugar too low (hypoglycemia). Check your blood sugar more often, watch for shakiness, sweating, or confusion, and talk with your doctor about whether this combo is safe for you.
Can I take neem topically if I can't take it by mouth?
When applied to skin, neem is generally well tolerated in adults and children. A small number of people report contact dermatitis (skin irritation) from topical use. If you want to avoid oral neem due to interactions or pregnancy, topical forms may be an option—ask your pharmacist about products designed for skin application.
I have G6PD deficiency—is neem safe for me?
There's at least one case of a person with G6PD deficiency who developed hemolytic anemia (breakdown of red blood cells) after drinking large amounts of neem tea daily. If you have this condition, talk with your doctor before taking any neem product, as it may pose extra risk for you.

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

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

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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.

Neem 500 mg label
Go deeper

The Full Monographs Behind Neem 500 mg’s Ingredients

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

Herb & supplement monograph

Neem

Interacts with 1,013 drugs

Neem is a tree from India used for centuries in traditional medicine, especially for skin, dental, and antimicrobial purposes. Some small studies are promising for oral health and skin, but...

Read the full Neem monograph →
Sources

Sources & How We Checked

Neem 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 28 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.

Neem 28 references
  1. Sinniah D, Baskaran G. Margosa oil poisoning as a cause of Reye's syndrome. Lancet 1981;1:487-9. PubMed
  2. Sinniah D, Baskaran G, Looi LM, Leong KL. Reye-like syndrome due to margosa oil poisoning: report of a case with postmortem findings. Am J Gastroenterol 1982;77:158-61.
  3. Sinniah R, Sinniah D, Chia LS, Baskaran G. Animal model of margosa oil ingestion with Reye-like syndrome. Pathogenesis of microvesicular fatty liver. J Pathol 1989;159:255-64. PubMed
  4. Lai SM, Lim KW, Cheng HK. Margosa oil poisoning as a cause of toxic encephalopathy. Singapore Med J 1990;31:463-5.
  5. Biswas K, Chattopadhyay I, Banerjee RK, Bandyopadhyay U. Biological activities and medicinal properties of neem (Azadirachta indica). Curr Sci 2002;82:1336-45.
  6. Upadhyay SN, Dhawan S, Garg S, Talwar GP. Immunomodulatory effects of neem (Azadirachta indica) oil. Int J Immunopharmacol 1992;14:1187-93. PubMed
  7. Ibrahim IA, Khalid SA, Omer SA, Adam SE. On the toxicology of Azadirachta indica leaves. J Ethnopharmacol 1992;35:267-73. PubMed
  8. Ali BH. Toxicology of Azadirachta indica. J Ethnopharmacol 1994;42:71-2. PubMed
  9. Boeke SJ, Boersma MG, Alink GM, et al. Safety evaluation of neem (Azadirachta indica) derived pesticides. J Ethnopharmacol 2004;94:25-41. PubMed
  10. Abdel-Ghaffar, F. and Semmler, M. Efficacy of neem seed extract shampoo on head lice of naturally infected humans in Egypt. Parasitol.Res 2007;100(2):329-332. PubMed
  11. Reutemann, P. and Ehrlich, A. Neem oil: an herbal therapy for alopecia causes dermatitis. Dermatitis 2008;19(3):E12-E15.
  12. Senanayake, M. P., Rupasinghe, S., and Dissanayake, P. V. Margosa (Kohomba) oil induced toxic encephalopathy following home remedy for intestinal worms. Ceylon Med.J 2009;54(4):140. PubMed
  13. Bhaskar, M. V., Pramod, S. J., Jeevika, M. U., Chandan, P. K., and Shetteppa, G. MR imaging findings of neem oil poisoning. AJNR Am J Neuroradiol. 2010;31(7):E60-E61.
  14. Iyyadurai, R., Surekha, V., Sathyendra, S., Paul, Wilson B., and Gopinath, K. G. Azadirachtin poisoning: a case report. Clin Toxicol.(Phila) 2010;48(8):857-858. PubMed
  15. Sinniah, D., Sinniah, R., Baskaran, G., Pathmanathan, R., Yamashita, F., and Yoshino, M. Evaluation of the possible role of glucose, carnitine, coenzyme Q10 and steroids in the treatment of Reye's syndrome using the margosa oil animal model. Acta Paediat PubMed
  16. Balakrishnan, V., Pillai, N. R., and Santhakumari, G. Ventricular fibrillation and cardiac arrest due to neem leaf poisoning. J.Assoc.Physicians India 1986;34(7):536.
  17. Sivashanmugham, R., Bhaskar, N., and Banumathi, N. Ventricular fibrillation and cardiac arrest due to neem leaf poisoning. J.Assoc.Physicians India 1984;32(7):610-611.
  18. Mukherjee, S. and Talwar, G. P. Termination of pregnancy in rodents by oral administration of praneem, a purified neem seed extract. Am J Reprod.Immunol. 1996;35(1):51-56. PubMed
  19. Talwar, G. P., Pal, R., Singh, O., Garg, S., Taluja, V., Upadhyay, S. N., Gopalan, S., Jain, V., Kaur, J., and Sehgal, S. Safety of intrauterine administration of purified neem seed oil (Praneem Vilci) in women & effect of its co-administration with the
  20. Talwar, G. P., Shah, S., Mukherjee, S., and Chabra, R. Induced termination of pregnancy by purified extracts of Azadirachta Indica (Neem): mechanisms involved. Am J Reprod.Immunol. 1997;37(6):485-491. PubMed
  21. Greenblatt DT, Banerjee P, White JM. Allergic contact dermatitis caused by neem oil. Contact Dermatitis. 2012;67(4):242-3. PubMed
  22. Page C, Hawes EM. Haemolytic anaemia after ingestion of Neem (Azadirachta indica) tea. BMJ Case Rep. 2013. pii: bcr2013200890.
  23. Braidy N, Berg J, Clement J, et al. Role of nicotinamide dinucleotide and related precursors as therapeutic targets for age-related degenerative diseases: rationale, biochemistry, pharmacokinetics, and outcomes. Antiox Redox Signal 2018.
  24. Jadhav PB. Leucoderma on the lips induced by neem (Azadirachta indica): case series. Clin Exp Dermatol. 2018;43(8):943-6.
  25. Giuggioli D, Lumetti F, Spinella A, et al. Use of Neem oil and Hypericum perforatum for treatment of calcinosis-related skin ulcers in systemic sclerosis. J Int Med Res 2019:300060519882176. Online ahead of print.
  26. Pingali U, Ali MA, Gundagani S, Nutalapati C. Evaluation of the effect of an aqueous extract of Azadirachta indica (neem) leaves and twigs on glycemic control, endothelial dysfunction and systemic inflammation in subjects with type 2 diabetes mellitus - a
  27. Amaeze O, Marques ES, Wei W, et al. Evaluation of Nigerian Medicinal Plants Extract on Human P-glycoprotein and Cytochrome P450 Enzyme Induction: Implications for Herb-drug Interaction. Curr Drug Metab. 2021;22(14):1103-1113. PubMed
  28. Amaeze O, Eng H, Horlbogen L, Varma MVS, Slitt A. Cytochrome P450 Enzyme Inhibition and Herb-Drug Interaction Potential of Medicinal Plant Extracts Used for Management of Diabetes in Nigeria. Eur J Drug Metab Pharmacokinet. 2021;46(3):437-450. PubMed

See these in context on the Neem 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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