Neem Powder Ingredients & Drug Interactions
What is this page for?
First and foremost: checking Neem Powder 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
Neem Powder is a dietary supplement by Vedic Powders 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, Powder. Use the checker below to test your specific medication, or read the full HelloPharmacist Interaction Report.
Check Your Meds Against Neem Powder by Vedic Powders
Ask about any prescription or over-the-counter medication and we check it for interactions with Neem Powder by Vedic Powders — and tell you which ingredient is responsible.
AI summaries are generated from our interaction database for education only — always confirm with your pharmacist. How we use AI
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HelloPharmacist Scorecard of Neem Powder by Vedic Powders
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.
What’s inside
Full disclosure
This product contains one active ingredient: neem powder. Neem is a traditional plant used in Ayurvedic practice, and this form is a straight powder with no added inactive ingredients listed.
Does it work?
Moderate evidence
Neem has the most evidence for gingivitis (inflamed gums) and lice — the research rates both as possibly effective. Dental plaque also carries a possibly effective rating.
For acne and tungiasis (a parasitic infection), we don't have enough reliable evidence yet to say whether neem works.
How safe is it?
Well-documented data
Neem leaf powder is likely safe short-term for most adults when taken by mouth, though high-quality safety studies are limited. However, neem oil and seed extracts are different — they can be toxic if swallowed, and neem oil can cause serious harm in children.
Topically (on the skin), neem is generally well tolerated in both children and adults, though some sensitive people may get contact dermatitis. Rare but serious side effects reported with oral neem leaf in adults include cardiac problems and kidney damage.
Neem should not be used during pregnancy — the evidence suggests it may affect fertility and the developing baby. Breastfeeding mothers should avoid it too, because there isn't enough safety data.
If you have glucose-6-phosphate dehydrogenase (G6PD) deficiency, a genetic condition affecting red blood cells, be aware that neem leaf has caused hemolytic anemia (breakdown of red blood cells) in at least one person with that condition.
Meds to double-check
Moderate interaction found
Before taking Neem Powder, double-check with your pharmacist if you're on any of these: diabetes medications (metformin and others), immunosuppressants, heart or psychiatric drugs metabolized through CYP1A2, CYP3A4, CYP2C9, or CYP2C8, or any medications that rely on P-glycoprotein transport. Neem may change how your body processes or eliminates these drugs.
The bottom line
Scorecard at a glanceFully disclosed formula with some supporting evidence behind its ingredients' uses. Moderate medication interactions have been identified, and safety information is well characterized.
Neem powder might be worth considering if you have gingivitis, plaque buildup, or lice and want to explore natural options. If you're pregnant, planning to become pregnant, or breastfeeding, skip it — the safety data advises against it.
If you take any prescription medications, especially diabetes drugs, immunosuppressants, or heart medications, talk with your pharmacist before starting, because neem may affect how they work.
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 Aug 22, 2025.
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
General information
Key facts about Neem Powder, straight from the product label.
| Brand | Vedic Powders |
|---|---|
| Barcode (UPC) | 8525180063468 |
| Net contents | 100 Gram(s); 3.52 Ounce(s) |
| Market status | On market |
| Date entered into DSLD | Aug 22, 2025 |
| DSLD ID | 336166 |
| Product type | Botanical |
| Supplement form | Powder |
| Dietary claims / uses | All Other, Structure/Function |
| Intended target group(s) | Adult (18 - 50 Years) |
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 Powder by Vedic Powders, sourced from the NIH Dietary Supplement Label Database.
Supplement Facts
| Ingredient | Amount | % DV |
|---|---|---|
| Neem, Powder | 3 Gram(s) | -- |
Tap any ingredient to jump to its full detail below.
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)
Vedic Powders Your Health Matters
Formula
(Indian Lilac) Plant part used - Leaf
FDA Statement of Identity
Dietary Supplement
Formulation
Extreme Fine Granularity
Heavy Metal Tested
Seals/Symbols
Heavy Metal Tested
Suggested/Recommended/Usage/Directions
Direction for use: Take 3.0 g with warm water up to twice daily.
General Statements
Due to varying density of the herb some jars might feel less full than others. As container used is standard size it is possible the jar might not seem full but the quantity is as per what is mentioned on label.
FDA Disclaimer Statement
"These statements have not been evaluated by the FDA. This product is not intended to diagnose, treat, cure or prevent any disease."
Is this label outdated? Report a formula or label change and our pharmacy team will review it.
Neem Powder by Vedic Powders label
The label scan from the NIH Dietary Supplement Label Database. Tap to enlarge.
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)The Ingredients in Neem Powder by Vedic Powders
This is the 1 active ingredient this product is made of. Select it to open its full monograph.
Serving size3 Gram(s) Dosage formPowder Servings per container33 Amounts shown are per serving.
Neem, Powder
Interacts with1,013 drugs
Neem is a tree from India used for centuries in traditional medicine, especially for skin, dental, and antimicrobial purposes. Some small studies are...
Neem, Powder monograph & interactionsNeem Powder by Vedic Powders Drug Interactions
HelloPharmacist Interaction Report
Neem Powder by Vedic Powders has Moderate interactions with a significant number of medications.
The ingredient neem can affect how your liver and kidneys handle certain drugs — specifically, it may increase the blood levels and effects of medications that rely on three major liver enzymes (CYP1A2, CYP3A4, and CYP2C9 substrates) and one kidney transporter (P-glycoprotein substrates). So far these interactions haven't been reported in humans, but they're based on lab research showing neem inhibits these pathways.
Read the full breakdown — every affected drug type, severity by severity
Neem also has Moderate interactions with two other important drug categories. It might lower the effectiveness of immunosuppressants (drugs that quiet down the immune system), and it can increase your risk of low blood sugar (hypoglycemia) if you're taking diabetes medications — some research shows neem itself can lower blood glucose.
Altogether, these interactions span 994 individual medications. We could not identify every specific drug in our data, so use the medication checker on this page with your exact prescriptions before you start neem.
Check your own medications below · Editorial policy · How we use AI
Want to check YOUR meds against Neem Powder?
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 checkerIngredients driving the most interactions
Individual Drug Interactions
The ingredients in Neem Powder interact with 1,013 drugs. Click any drug to see the details.
1 of the 1 ingredient in Neem Powder interact with drugs. Each result below shows which ingredient is responsible. Neem, Powder
6-mercaptopurinePurinethol
How 6-mercaptopurine interacts with Neem Powder — through 1 ingredient. Tap an ingredient for the detail:
Neem, PowderImmunosuppressants Moderate
Interaction Summary
Theoretically, neem might decrease the effectiveness of immunosuppressants.
Read the full Neem, Powder + 6-mercaptopurine interactionAdo-trastuzumab EmtansineKadcyla
How Ado-trastuzumab Emtansine interacts with Neem Powder — through 1 ingredient. Tap an ingredient for the detail:
Neem, PowderCytochrome P450 3a4 (cyp3a4) Substrates Moderate
Interaction Summary
Theoretically, neem leaf extract might increase the levels and clinical effects of CYP3A4 substrates.
Read the full Neem, Powder + Ado-trastuzumab Emtansine interactionAbemaciclibVerzenio
How Abemaciclib interacts with Neem Powder — through 1 ingredient. Tap an ingredient for the detail:
Neem, PowderCytochrome P450 3a4 (cyp3a4) Substrates Moderate
Interaction Summary
Theoretically, neem leaf extract might increase the levels and clinical effects of CYP3A4 substrates.
Read the full Neem, Powder + Abemaciclib interactionAbiraterone
How Abiraterone interacts with Neem Powder — through 1 ingredient. Tap an ingredient for the detail:
Neem, PowderCytochrome P450 3a4 (cyp3a4) Substrates Moderate
Interaction Summary
Theoretically, neem leaf extract might increase the levels and clinical effects of CYP3A4 substrates.
Read the full Neem, Powder + Abiraterone interactionAbiraterone AcetateYonsa, Zytiga
How Abiraterone Acetate interacts with Neem Powder — through 1 ingredient. Tap an ingredient for the detail:
Neem, PowderCytochrome P450 3a4 (cyp3a4) Substrates Moderate
Interaction Summary
Theoretically, neem leaf extract might increase the levels and clinical effects of CYP3A4 substrates.
Read the full Neem, Powder + Abiraterone Acetate interactionAbrocitinibCibinqo
How Abrocitinib interacts with Neem Powder — through 1 ingredient. Tap an ingredient for the detail:
Neem, PowderImmunosuppressants, Cytochrome P450 2c9 (cyp2c9) Substrates Moderate
Interaction Summary
Theoretically, neem might decrease the effectiveness of immunosuppressants.
Read the full Neem, Powder + Abrocitinib interactionAcalabrutinibCalquence
How Acalabrutinib interacts with Neem Powder — through 1 ingredient. Tap an ingredient for the detail:
Neem, PowderCytochrome P450 3a4 (cyp3a4) Substrates, P-glycoprotein Substrates Moderate
Interaction Summary
Theoretically, neem leaf extract might increase the levels and clinical effects of CYP3A4 substrates.
Read the full Neem, Powder + Acalabrutinib interactionAcarboseGlucobay, Prandase, Precose
How Acarbose interacts with Neem Powder — through 1 ingredient. Tap an ingredient for the detail:
Neem, PowderAntidiabetes Drugs Moderate
Interaction Summary
Neem might increase the risk of hypoglycemia when taken with antidiabetes drugs.
Read the full Neem, Powder + Acarbose interactionAcetaminophenChildren's Tylenol, Children's Tylenol Meltaways, Tylenol, Tylenol Ex Strength
How Acetaminophen interacts with Neem Powder — through 1 ingredient. Tap an ingredient for the detail:
Neem, PowderCytochrome P450 1a2 (cyp1a2) Substrates Moderate
Interaction Summary
Theoretically, neem leaf extract might increase the levels and clinical effects of CYP1A2 substrates.
Read the full Neem, Powder + Acetaminophen interactionAcetaminophen, AspirinGemnisyn
How Acetaminophen, Aspirin interacts with Neem Powder — through 1 ingredient. Tap an ingredient for the detail:
Neem, PowderCytochrome P450 1a2 (cyp1a2) Substrates Moderate
Interaction Summary
Theoretically, neem leaf extract might increase the levels and clinical effects of CYP1A2 substrates.
Read the full Neem, Powder + Acetaminophen, Aspirin interactionAcetaminophen, Aspirin, CaffeineExcedrin, Excedrin Extra Strength, Excedrin Migraine
How Acetaminophen, Aspirin, Caffeine interacts with Neem Powder — through 1 ingredient. Tap an ingredient for the detail:
Neem, PowderCytochrome P450 1a2 (cyp1a2) Substrates, Cytochrome P450 3a4 (cyp3a4) Substrates Moderate
Interaction Summary
Theoretically, neem leaf extract might increase the levels and clinical effects of CYP1A2 substrates.
Read the full Neem, Powder + Acetaminophen, Aspirin, Caffeine interactionAcetaminophen, Brompheniramine, PhenylpropanolamineDimetapp Cold and Flu
How Acetaminophen, Brompheniramine, Phenylpropanolamine interacts with Neem Powder — through 1 ingredient. Tap an ingredient for the detail:
Neem, PowderCytochrome P450 1a2 (cyp1a2) Substrates Moderate
Interaction Summary
Theoretically, neem leaf extract might increase the levels and clinical effects of CYP1A2 substrates.
Read the full Neem, Powder + Acetaminophen, Brompheniramine, Phenylpropanolamine interactionAcetaminophen, ButalbitalAxocet, Bancap, Bucet, Butex Forte, Esgic CF, Orbivan CF +5 more
How Acetaminophen, Butalbital interacts with Neem Powder — through 1 ingredient. Tap an ingredient for the detail:
Neem, PowderCytochrome P450 1a2 (cyp1a2) Substrates Moderate
Interaction Summary
Theoretically, neem leaf extract might increase the levels and clinical effects of CYP1A2 substrates.
Read the full Neem, Powder + Acetaminophen, Butalbital interactionAcetaminophen, Butalbital, CaffeineEsgic, Esgic Plus, Fiogesic, Fioricet, Repan, Tecnal +1 more
How Acetaminophen, Butalbital, Caffeine interacts with Neem Powder — through 1 ingredient. Tap an ingredient for the detail:
Neem, PowderCytochrome P450 1a2 (cyp1a2) Substrates, Cytochrome P450 3a4 (cyp3a4) Substrates Moderate
Interaction Summary
Theoretically, neem leaf extract might increase the levels and clinical effects of CYP1A2 substrates.
Read the full Neem, Powder + Acetaminophen, Butalbital, Caffeine interactionAcetaminophen, Butalbital, Caffeine, CodeineEsgic with Codeine, Fioricet w/ Codeine
How Acetaminophen, Butalbital, Caffeine, Codeine interacts with Neem Powder — through 1 ingredient. Tap an ingredient for the detail:
Neem, PowderCytochrome P450 1a2 (cyp1a2) Substrates, Cytochrome P450 3a4 (cyp3a4) Substrates Moderate
Interaction Summary
Theoretically, neem leaf extract might increase the levels and clinical effects of CYP1A2 substrates.
Read the full Neem, Powder + Acetaminophen, Butalbital, Caffeine, Codeine interactionAcetaminophen, Butalbital, CodeineBancap w/ Codeine
How Acetaminophen, Butalbital, Codeine interacts with Neem Powder — through 1 ingredient. Tap an ingredient for the detail:
Neem, PowderCytochrome P450 1a2 (cyp1a2) Substrates Moderate
Interaction Summary
Theoretically, neem leaf extract might increase the levels and clinical effects of CYP1A2 substrates.
Read the full Neem, Powder + Acetaminophen, Butalbital, Codeine interactionAcetaminophen, Butalbital, Codeine PhosphatePhrenilin #3
How Acetaminophen, Butalbital, Codeine Phosphate interacts with Neem Powder — through 1 ingredient. Tap an ingredient for the detail:
Neem, PowderCytochrome P450 1a2 (cyp1a2) Substrates Moderate
Interaction Summary
Theoretically, neem leaf extract might increase the levels and clinical effects of CYP1A2 substrates.
Read the full Neem, Powder + Acetaminophen, Butalbital, Codeine Phosphate interactionAcetaminophen, Caffeine, Chlorpheniramine, Hydrocodone, PhenylephrineHycomine Compound
How Acetaminophen, Caffeine, Chlorpheniramine, Hydrocodone, Phenylephrine interacts with Neem Powder — through 1 ingredient. Tap an ingredient for the detail:
Neem, PowderCytochrome P450 1a2 (cyp1a2) Substrates, Cytochrome P450 3a4 (cyp3a4) Substrates Moderate
Interaction Summary
Theoretically, neem leaf extract might increase the levels and clinical effects of CYP1A2 substrates.
Read the full Neem, Powder + Acetaminophen, Caffeine, Chlorpheniramine, Hydrocodone, Phenylephrine interactionAcetaminophen, Caffeine, CodeineGesic C15, Gesic C30, Gesic C8, Lenoltec 1, Lenoltec 2, Lenoltec 3 +1 more
How Acetaminophen, Caffeine, Codeine interacts with Neem Powder — through 1 ingredient. Tap an ingredient for the detail:
Neem, PowderCytochrome P450 3a4 (cyp3a4) Substrates, Cytochrome P450 1a2 (cyp1a2) Substrates Moderate
Interaction Summary
Theoretically, neem leaf extract might increase the levels and clinical effects of CYP3A4 substrates.
Read the full Neem, Powder + Acetaminophen, Caffeine, Codeine interactionAcetaminophen, Caffeine, Codeine, SalicylamideCodalan No.1, Codalan No.2, Codalan No.3
How Acetaminophen, Caffeine, Codeine, Salicylamide interacts with Neem Powder — through 1 ingredient. Tap an ingredient for the detail:
Neem, PowderCytochrome P450 1a2 (cyp1a2) Substrates, Cytochrome P450 3a4 (cyp3a4) Substrates Moderate
Interaction Summary
Theoretically, neem leaf extract might increase the levels and clinical effects of CYP1A2 substrates.
Read the full Neem, Powder + Acetaminophen, Caffeine, Codeine, Salicylamide interactionAcetaminophen, Caffeine, DihydrocodeineDHC Plus, Panlor DC, Panlor SS
How Acetaminophen, Caffeine, Dihydrocodeine interacts with Neem Powder — through 1 ingredient. Tap an ingredient for the detail:
Neem, PowderCytochrome P450 3a4 (cyp3a4) Substrates, Cytochrome P450 1a2 (cyp1a2) Substrates Moderate
Interaction Summary
Theoretically, neem leaf extract might increase the levels and clinical effects of CYP3A4 substrates.
Read the full Neem, Powder + Acetaminophen, Caffeine, Dihydrocodeine interactionAcetaminophen, Caffeine, IsomethepteneMigralam
How Acetaminophen, Caffeine, Isometheptene interacts with Neem Powder — through 1 ingredient. Tap an ingredient for the detail:
Neem, PowderCytochrome P450 1a2 (cyp1a2) Substrates, Cytochrome P450 3a4 (cyp3a4) Substrates Moderate
Interaction Summary
Theoretically, neem leaf extract might increase the levels and clinical effects of CYP1A2 substrates.
Read the full Neem, Powder + Acetaminophen, Caffeine, Isometheptene interactionAcetaminophen, Caffeine, PyrilamineMidol Max Strength Menstrual
How Acetaminophen, Caffeine, Pyrilamine interacts with Neem Powder — through 1 ingredient. Tap an ingredient for the detail:
Neem, PowderCytochrome P450 3a4 (cyp3a4) Substrates, Cytochrome P450 1a2 (cyp1a2) Substrates Moderate
Interaction Summary
Theoretically, neem leaf extract might increase the levels and clinical effects of CYP3A4 substrates.
Read the full Neem, Powder + Acetaminophen, Caffeine, Pyrilamine interactionAcetaminophen, Chlorpheniramine Maleate, Dextromethorphan HbrVicks Formula 44M Cough, Cold & Flu Relief
How Acetaminophen, Chlorpheniramine Maleate, Dextromethorphan Hbr interacts with Neem Powder — through 1 ingredient. Tap an ingredient for the detail:
Neem, PowderCytochrome P450 1a2 (cyp1a2) Substrates, Cytochrome P450 3a4 (cyp3a4) Substrates Moderate
Interaction Summary
Theoretically, neem leaf extract might increase the levels and clinical effects of CYP1A2 substrates.
Read the full Neem, Powder + Acetaminophen, Chlorpheniramine Maleate, Dextromethorphan Hbr interactionAcetaminophen, Chlorpheniramine, Codeine, PhenylephrineColrex
How Acetaminophen, Chlorpheniramine, Codeine, Phenylephrine interacts with Neem Powder — through 1 ingredient. Tap an ingredient for the detail:
Neem, PowderCytochrome P450 1a2 (cyp1a2) Substrates, Cytochrome P450 3a4 (cyp3a4) Substrates Moderate
Interaction Summary
Theoretically, neem leaf extract might increase the levels and clinical effects of CYP1A2 substrates.
Read the full Neem, Powder + Acetaminophen, Chlorpheniramine, Codeine, Phenylephrine interactionAcetaminophen, Chlorpheniramine, DextromethorphanCoricidin II Extra Strength Cold and Flu
How Acetaminophen, Chlorpheniramine, Dextromethorphan interacts with Neem Powder — through 1 ingredient. Tap an ingredient for the detail:
Neem, PowderCytochrome P450 3a4 (cyp3a4) Substrates, Cytochrome P450 1a2 (cyp1a2) Substrates Moderate
Interaction Summary
Theoretically, neem leaf extract might increase the levels and clinical effects of CYP3A4 substrates.
Read the full Neem, Powder + Acetaminophen, Chlorpheniramine, Dextromethorphan interactionAcetaminophen, Chlorpheniramine, Dextromethorphan HydrobromideCoricidin HBP Maximum Strength Flu
How Acetaminophen, Chlorpheniramine, Dextromethorphan Hydrobromide interacts with Neem Powder — through 1 ingredient. Tap an ingredient for the detail:
Neem, PowderCytochrome P450 1a2 (cyp1a2) Substrates, Cytochrome P450 3a4 (cyp3a4) Substrates Moderate
Interaction Summary
Theoretically, neem leaf extract might increase the levels and clinical effects of CYP1A2 substrates.
Read the full Neem, Powder + Acetaminophen, Chlorpheniramine, Dextromethorphan Hydrobromide interactionAcetaminophen, Chlorpheniramine, Dextromethorphan, PhenylpropanolamineMulti Symptom Cold Relief
How Acetaminophen, Chlorpheniramine, Dextromethorphan, Phenylpropanolamine interacts with Neem Powder — through 1 ingredient. Tap an ingredient for the detail:
Neem, PowderCytochrome P450 3a4 (cyp3a4) Substrates, Cytochrome P450 1a2 (cyp1a2) Substrates Moderate
Interaction Summary
Theoretically, neem leaf extract might increase the levels and clinical effects of CYP3A4 substrates.
Read the full Neem, Powder + Acetaminophen, Chlorpheniramine, Dextromethorphan, Phenylpropanolamine interactionAcetaminophen, Chlorpheniramine, Dextromethorphan, PseudoephedrineChildren's Tylenol Cold Plus Cough, Tylenol Cold Ex Strength
How Acetaminophen, Chlorpheniramine, Dextromethorphan, Pseudoephedrine interacts with Neem Powder — through 1 ingredient. Tap an ingredient for the detail:
Neem, PowderCytochrome P450 1a2 (cyp1a2) Substrates, Cytochrome P450 3a4 (cyp3a4) Substrates Moderate
Interaction Summary
Theoretically, neem leaf extract might increase the levels and clinical effects of CYP1A2 substrates.
Read the full Neem, Powder + Acetaminophen, Chlorpheniramine, Dextromethorphan, Pseudoephedrine interactionAcetaminophen, Chlorpheniramine, Guaifenesin, Phenylephrine, SalicylamideRhinogesic GG
How Acetaminophen, Chlorpheniramine, Guaifenesin, Phenylephrine, Salicylamide interacts with Neem Powder — through 1 ingredient. Tap an ingredient for the detail:
Neem, PowderCytochrome P450 3a4 (cyp3a4) Substrates, Cytochrome P450 1a2 (cyp1a2) Substrates Moderate
Interaction Summary
Theoretically, neem leaf extract might increase the levels and clinical effects of CYP3A4 substrates.
Read the full Neem, Powder + Acetaminophen, Chlorpheniramine, Guaifenesin, Phenylephrine, Salicylamide interactionEach ingredient & the kinds of drugs it affects
For each ingredient in Neem Powder 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.
Neem, Powder
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.
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.
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.
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.
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.
Immunosuppressants
Theoretically, neem might decrease the effectiveness of immunosuppressants.
Animal research suggests that neem might have immunostimulant effects.
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.
Brand information
Manufacturer and brand details for Neem Powder, from the product label.
Neem Powder by Vedic Powders: Common Questions
Does Neem Powder by Vedic Powders interact with any medications?
How can one product interact with so many drugs?
Where does this information come from?
Can I use neem powder while I'm pregnant or breastfeeding?
Is neem powder safe for kids?
What does neem actually treat?
Are there any side effects from taking neem powder by mouth?
Will neem affect my diabetes medication?
Is the powder form different from neem oil?
Written and reviewed by the HelloPharmacist editorial staff. Our editorial policy
Not sure if Neem Powder is safe with your meds?
Our pharmacists answer your medication & supplement questions — free.
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.
The Full Monographs Behind Neem Powder’s Ingredients
Every ingredient we hold a full HelloPharmacist monograph for — uses, evidence, safety, and the complete interaction list.
Sources & How We Checked
Neem Powder'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.
- NIH Dietary Supplement Label Database (DSLD) — The official product label on file for this supplement.
- Natural Medicines (Therapeutic Research Center) — Evidence-graded clinical reference behind the ingredient interaction data.
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
- Sinniah D, Baskaran G. Margosa oil poisoning as a cause of Reye's syndrome. Lancet 1981;1:487-9. PubMed
- 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.
- 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
- Lai SM, Lim KW, Cheng HK. Margosa oil poisoning as a cause of toxic encephalopathy. Singapore Med J 1990;31:463-5.
- Biswas K, Chattopadhyay I, Banerjee RK, Bandyopadhyay U. Biological activities and medicinal properties of neem (Azadirachta indica). Curr Sci 2002;82:1336-45.
- Upadhyay SN, Dhawan S, Garg S, Talwar GP. Immunomodulatory effects of neem (Azadirachta indica) oil. Int J Immunopharmacol 1992;14:1187-93. PubMed
- Ibrahim IA, Khalid SA, Omer SA, Adam SE. On the toxicology of Azadirachta indica leaves. J Ethnopharmacol 1992;35:267-73. PubMed
- Ali BH. Toxicology of Azadirachta indica. J Ethnopharmacol 1994;42:71-2. PubMed
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