Carb Blocker Ingredients & Drug Interactions
What is this page for?
First and foremost: checking Carb Blocker 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
Carb Blocker is a dietary supplement by Best Naturals with 5 active ingredients. Its ingredients are commonly taken for blood sugar control, boosting breast milk supply, high cholesterol.Based on those ingredients, 1,044 medications have a known interaction with it, the most serious rated moderate. The ingredients most likely to interact are Gymnema sylvestre extract, Fenugreek, Phaseolus vulgaris. Use the checker below to test your specific medication, or read the full HelloPharmacist Interaction Report.
Check Your Meds Against Carb Blocker by Best Naturals
Ask about any prescription or over-the-counter medication and we check it for interactions with Carb Blocker by Best Naturals — 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 Carb Blocker by Best Naturals
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
Partial disclosure
Carb Blocker by Best Naturals contains 5 ingredients. Three of them are active: fenugreek seed, Phaseolus vulgaris (white bean extract), and gymnema sylvestre extract — all aimed at managing blood sugar and appetite.
White Bean Protein and Lite N'Lean Blend are also listed; we could not check the latter for interactions. The product also contains inactive ingredients: gelatin (capsule material), silica, and vegetable stearate (a binder).
Does it work?
Moderate evidence
The evidence here is mixed. Fenugreek is rated possibly effective for diabetes and for sexual dysfunction.
Phaseolus vulgaris is rated possibly effective for obesity, though evidence for diabetes and cholesterol is insufficient. Gymnema sylvestre extract has insufficient evidence for diabetes, obesity, prediabetes, and metabolic syndrome — so while it's often marketed for blood sugar, the data we hold doesn't support that claim clearly.
If blood sugar control is your main goal, the evidence behind these ingredients is inconsistent.
How safe is it?
Well-documented data
Fenugreek is generally well tolerated in food amounts, but supplement doses may cause abdominal pain, bloating, diarrhea, nausea, and flatulence. Rare severe allergic reactions (bronchospasm, anaphylaxis) have been reported.
The safety data advises against fenugreek in pregnancy because it may affect the uterus; it's considered possibly safe during breastfeeding and is often used to boost milk supply, though you should discuss that with your provider first. Phaseolus vulgaris extract is generally well tolerated but may cause digestive upset (constipation, diarrhea, nausea, stomach pain).
Concentrated bean extracts aren't well studied in pregnancy or breastfeeding. Gymnema is generally well tolerated short-term but carries a rare reported case of hepatitis with jaundice and liver enzyme elevation.
It's not recommended during pregnancy or breastfeeding due to insufficient safety data.
Meds to double-check
Moderate interaction found
Before taking this product, double-check your medications against these drug types: diabetes medications (risk of low blood sugar), blood thinners and antiplatelet drugs (increased bleeding risk), theophylline (breathing medication), blood pressure drugs, seizure medications, drugs metabolized by CYP1A2, CYP2C9, and CYP3A4 enzymes — a very large category covering statins, immunosuppressants, HIV medications, and many others. If you're on any of these, talk to your pharmacist first.
The bottom line
Scorecard at a glancePartially disclosed formula with some supporting evidence for its stated purpose. Moderate medication interactions have been identified, and safety information is well characterized.
This product is aimed at people managing blood sugar and weight, but it interacts with a large number of medications — especially diabetes drugs, blood thinners, and medications your liver processes. If you take any prescription medication at all, especially for diabetes, heart, or blood pressure, check with your pharmacist or use the tool on this page before starting.
Pregnant or breastfeeding individuals should avoid it.
Educational only — not medical advice; always confirm with your pharmacist. Our editorial policy · How we use AI
Assessment coverage: 3 of 5 active ingredients matched to our full ingredient reviews (monographs). Based on the product label dated Sep 22, 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
General information
Key facts about Carb Blocker , straight from the product label.
| Brand | Best Naturals |
|---|---|
| Barcode (UPC) | 817716013862 |
| Net contents | 180 Capsule(s) |
| Market status | On market |
| Date entered into DSLD | Sep 22, 2022 |
| DSLD ID | 273024 |
| Product type | Other Combinations |
| Supplement form | Capsule |
| Dietary claims / uses | All Other, Structure/Function |
| Intended target group(s) | Adult (18 - 50 Years), Gluten Free, Dairy Free, Sugar Free |
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 Carb Blocker by Best Naturals, sourced from the NIH Dietary Supplement Label Database.
Supplement Facts
| Ingredient | Amount | % DV |
|---|---|---|
| Fenugreek | 50 mg | -- |
| White Bean Protein | 0 NP | -- |
| Phaseolus vulgaris | 1500 mg | -- |
| Gymnema sylvestre extract | 50 mg | -- |
| Lite N'Lean Blend | 200 mg | -- |
Other ingredients: Gelatin, Silica, Vegetable Stearate
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.
Formula
Phaseolus Vulgaris, the Great Northern White Bean, contains an inhibitor of alpha-amylase. Alpha-amylase is an enzyme that promotes the breakdown of starch in the human intestinal tract. Ingestion of this inhibitor, which is present in the protein fraction of the bean, can reduce the digestion of starch in foods so that less sugars are absorbed. This "starch-blocker" action reduces the available caloric content of some foods.
500 mg
Containing: Alpha Lipoic Acid, Korean Ginseng, Green Tea Extract, L-Carnitine.
Formulation
Helps carb control Supports weight loss Supports fat metabolism
Weight management
Keeps your carb & sugar calories in check
No artificial color, flavor or sweetener, no preservatives, no sugar, no starch, no milk, no corn, no soy, no egg, no lactose, no gluten, no wheat, no yeast, no fish. Sodium free.
Suggested/Recommended/Usage/Directions
Suggested Use: As a dietary supplement, take three (3) capsules before any meal containing complex carbohydrates or starches, or as directed by your qualified healthcare professional.
Precautions
Keep out of the reach of children.
Do not use if safety seal is broken or missing.
Caution: For adults only, if you are pregnant, nursing, taking any medications or have any medical condition, consult your doctor before use.
Caution: For adults only, if you are pregnant, nursing, taking any medications or have any medical condition, consult your doctor before use. Discontinue use and consult your doctor if any adverse reactions occur.
Storage
Keep in cool, dry place.
FDA Disclaimer Statement
These statements have not been evaluated by the FDA. This product is not intended to cure, treat, prevent, treat or diagnose any disease.
Seals/Symbols
Made in USA
GMP Good Manufacturing Practice Product
FDA Statement of Identity
Dietary Supplement
General Statements
For additional information call 1-877-659-6004
Is this label outdated? Report a formula or label change and our pharmacy team will review it.
Carb Blocker by Best Naturals 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 Carb Blocker by Best Naturals
These are the 5 active ingredients this product is made of. Select any to open its full monograph.
Serving size3 Capsule(s) Dosage formCapsule Servings per container60 Amounts shown are per serving.
Most supplement products combine several ingredients, and a medication can interact with the product through any one of them. Each ingredient below shows whether it has known drug interactions.
Fenugreek
Interacts with389 drugs
Fenugreek is a common kitchen spice that is also taken as a supplement, mainly for blood sugar, cholesterol, and to support breast milk production. So...
Fenugreek monograph & interactionsWhite Bean Protein
Phaseolus vulgaris
Interacts with86 drugs
Phaseolus vulgaris, the common bean, is widely eaten as food, and a concentrated white bean extract is marketed as a 'carb blocker' for weight loss. S...
Phaseolus vulgaris monograph & interactionsGymnema sylvestre extract
Interacts with851 drugs
Gymnema is an Ayurvedic herb best known for possibly helping lower blood sugar and reducing the taste of sweetness on the tongue. Some early human stu...
Gymnema sylvestre extract monograph & interactionsLite N'Lean Blend
Other (inactive) ingredients: Gelatin, Silica, Vegetable Stearate. These complete the product’s ingredient list but are not active constituents.
Carb Blocker by Best Naturals Drug Interactions
HelloPharmacist Interaction Report
Carb Blocker by Best Naturals contains ingredients with documented interactions affecting over 1,000 individual medications.
The most serious concern is fenugreek, which has Moderate-severity interactions with blood thinners and antiplatelet drugs — it may increase bleeding risk by mimicking or amplifying their effects.
Read the full breakdown — every affected drug type, severity by severity
Fenugreek also interacts moderately with diabetes medications (raising the risk of low blood sugar), theophylline (a breathing medication that may become less effective), blood pressure drugs like metoprolol, and seizure medications like phenytoin. Phaseolus vulgaris (white bean) adds a Moderate interaction with diabetes drugs, again through low blood sugar risk.
Gymnema sylvestre extract raises additional Moderate concerns: it can inhibit or speed up how your liver clears several drug families (CYP1A2 and CYP2C9 substrates), alter blood sugar medications, and may affect phenacetin and tolbutamide levels. It also carries a Minor interaction with CYP3A4 substrates — a large drug family including many statins, immunosuppressants, and HIV medications.
White Bean Protein and Lite N'Lean Blend could not be checked — we hold no interaction data for them. Use the medication checker below to look up your exact prescriptions before starting this product.
Check your own medications below · Editorial policy · How we use AI
Want to check YOUR meds against Carb Blocker ?
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 Carb Blocker interact with 1,044 drugs. Click any drug to see the details.
3 of the 5 ingredients in Carb Blocker interact with drugs. Each result below shows which ingredient is responsible. Gymnema sylvestre extract Fenugreek Phaseolus vulgaris
AbciximabReoPro
How Abciximab interacts with Carb Blocker — through 1 ingredient. Tap an ingredient for the detail:
FenugreekAnticoagulant/antiplatelet Drugs Moderate
Interaction Summary
Theoretically, fenugreek might have additive effects when used with anticoagulant or antiplatelet drugs.
Read the full Fenugreek + Abciximab interactionAbrocitinibCibinqo
How Abrocitinib interacts with Carb Blocker — through 2 ingredients. Tap an ingredient for the detail:
Gymnema Sylvestre ExtractCytochrome P450 2c9 (cyp2c9) Substrates Moderate
Interaction Summary
Theoretically, gymnema might increase or decrease levels of drugs metabolized by CYP2C9.
Read the full Gymnema Sylvestre Extract + Abrocitinib interactionFenugreekAnticoagulant/antiplatelet Drugs Moderate
Interaction Summary
Theoretically, fenugreek might have additive effects when used with anticoagulant or antiplatelet drugs.
Read the full Fenugreek + Abrocitinib interactionAcarboseGlucobay, Prandase, Precose
How Acarbose interacts with Carb Blocker — through 3 ingredients. Tap an ingredient for the detail:
Phaseolus VulgarisAntidiabetes Drugs Moderate
Interaction Summary
Theoretically, Phaseolus vulgaris might increase the risk of hypoglycemia when taken with antidiabetes drugs.
Read the full Phaseolus Vulgaris + Acarbose interactionFenugreekAntidiabetes Drugs Moderate
Interaction Summary
Theoretically, fenugreek seed might have additive hypoglycemic effects when used with antidiabetes drugs.
Read the full Fenugreek + Acarbose interactionGymnema Sylvestre ExtractAntidiabetes Drugs Moderate
Interaction Summary
Theoretically, taking gymnema with antidiabetes drugs might increase the risk of hypoglycemia.
Read the full Gymnema Sylvestre Extract + Acarbose interactionAcenocoumarolSintrom
How Acenocoumarol interacts with Carb Blocker — through 1 ingredient. Tap an ingredient for the detail:
FenugreekAnticoagulant/antiplatelet Drugs Moderate
Interaction Summary
Theoretically, fenugreek might have additive effects when used with anticoagulant or antiplatelet drugs.
Read the full Fenugreek + Acenocoumarol interactionAcetaminophenChildren's Tylenol, Children's Tylenol Meltaways, Tylenol, Tylenol Ex Strength
How Acetaminophen interacts with Carb Blocker — through 1 ingredient. Tap an ingredient for the detail:
Gymnema Sylvestre ExtractCytochrome P450 1a2 (cyp1a2) Substrates Moderate
Interaction Summary
Theoretically, gymnema might increase levels of drugs metabolized by CYP1A2.
Read the full Gymnema Sylvestre Extract + Acetaminophen interactionAcetaminophen, AspirinGemnisyn
How Acetaminophen, Aspirin interacts with Carb Blocker — through 2 ingredients. Tap an ingredient for the detail:
Gymnema Sylvestre ExtractCytochrome P450 1a2 (cyp1a2) Substrates Moderate
Interaction Summary
Theoretically, gymnema might increase levels of drugs metabolized by CYP1A2.
Read the full Gymnema Sylvestre Extract + Acetaminophen, Aspirin interactionFenugreekAnticoagulant/antiplatelet Drugs Moderate
Interaction Summary
Theoretically, fenugreek might have additive effects when used with anticoagulant or antiplatelet drugs.
Read the full Fenugreek + Acetaminophen, Aspirin interactionAcetaminophen, Aspirin, CaffeineExcedrin, Excedrin Extra Strength, Excedrin Migraine
How Acetaminophen, Aspirin, Caffeine interacts with Carb Blocker — through 2 ingredients. Tap an ingredient for the detail:
FenugreekAnticoagulant/antiplatelet Drugs Moderate
Interaction Summary
Theoretically, fenugreek might have additive effects when used with anticoagulant or antiplatelet drugs.
Read the full Fenugreek + Acetaminophen, Aspirin, Caffeine interactionGymnema Sylvestre ExtractCytochrome P450 1a2 (cyp1a2) Substrates, Cytochrome P450 3a4 (cyp3a4) Substrates Moderate
Interaction Summary
Theoretically, gymnema might increase levels of drugs metabolized by CYP1A2.
Read the full Gymnema Sylvestre Extract + Acetaminophen, Aspirin, Caffeine interactionAcetaminophen, Brompheniramine, PhenylpropanolamineDimetapp Cold and Flu
How Acetaminophen, Brompheniramine, Phenylpropanolamine interacts with Carb Blocker — through 1 ingredient. Tap an ingredient for the detail:
Gymnema Sylvestre ExtractCytochrome P450 1a2 (cyp1a2) Substrates Moderate
Interaction Summary
Theoretically, gymnema might increase levels of drugs metabolized by CYP1A2.
Read the full Gymnema Sylvestre Extract + Acetaminophen, Brompheniramine, Phenylpropanolamine interactionAcetaminophen, ButalbitalAxocet, Bancap, Bucet, Butex Forte, Esgic CF, Orbivan CF +5 more
How Acetaminophen, Butalbital interacts with Carb Blocker — through 1 ingredient. Tap an ingredient for the detail:
Gymnema Sylvestre ExtractCytochrome P450 1a2 (cyp1a2) Substrates Moderate
Interaction Summary
Theoretically, gymnema might increase levels of drugs metabolized by CYP1A2.
Read the full Gymnema Sylvestre Extract + Acetaminophen, Butalbital interactionAcetaminophen, Butalbital, CaffeineEsgic, Esgic Plus, Fiogesic, Fioricet, Repan, Tecnal +1 more
How Acetaminophen, Butalbital, Caffeine interacts with Carb Blocker — through 1 ingredient. Tap an ingredient for the detail:
Gymnema Sylvestre ExtractCytochrome P450 1a2 (cyp1a2) Substrates, Cytochrome P450 3a4 (cyp3a4) Substrates Moderate
Interaction Summary
Theoretically, gymnema might increase levels of drugs metabolized by CYP1A2.
Read the full Gymnema Sylvestre Extract + Acetaminophen, Butalbital, Caffeine interactionAcetaminophen, Butalbital, Caffeine, CodeineEsgic with Codeine, Fioricet w/ Codeine
How Acetaminophen, Butalbital, Caffeine, Codeine interacts with Carb Blocker — through 1 ingredient. Tap an ingredient for the detail:
Gymnema Sylvestre ExtractCytochrome P450 3a4 (cyp3a4) Substrates, Cytochrome P450 1a2 (cyp1a2) Substrates Moderate
Interaction Summary
Theoretically, gymnema might increase levels of drugs metabolized by CYP3A4.
Read the full Gymnema Sylvestre Extract + Acetaminophen, Butalbital, Caffeine, Codeine interactionAcetaminophen, Butalbital, CodeineBancap w/ Codeine
How Acetaminophen, Butalbital, Codeine interacts with Carb Blocker — through 1 ingredient. Tap an ingredient for the detail:
Gymnema Sylvestre ExtractCytochrome P450 1a2 (cyp1a2) Substrates Moderate
Interaction Summary
Theoretically, gymnema might increase levels of drugs metabolized by CYP1A2.
Read the full Gymnema Sylvestre Extract + Acetaminophen, Butalbital, Codeine interactionAcetaminophen, Butalbital, Codeine PhosphatePhrenilin #3
How Acetaminophen, Butalbital, Codeine Phosphate interacts with Carb Blocker — through 1 ingredient. Tap an ingredient for the detail:
Gymnema Sylvestre ExtractCytochrome P450 1a2 (cyp1a2) Substrates Moderate
Interaction Summary
Theoretically, gymnema might increase levels of drugs metabolized by CYP1A2.
Read the full Gymnema Sylvestre Extract + Acetaminophen, Butalbital, Codeine Phosphate interactionAcetaminophen, Caffeine, Chlorpheniramine, Hydrocodone, PhenylephrineHycomine Compound
How Acetaminophen, Caffeine, Chlorpheniramine, Hydrocodone, Phenylephrine interacts with Carb Blocker — through 1 ingredient. Tap an ingredient for the detail:
Gymnema Sylvestre ExtractCytochrome P450 1a2 (cyp1a2) Substrates, Cytochrome P450 3a4 (cyp3a4) Substrates Moderate
Interaction Summary
Theoretically, gymnema might increase levels of drugs metabolized by CYP1A2.
Read the full Gymnema Sylvestre Extract + 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 Carb Blocker — through 1 ingredient. Tap an ingredient for the detail:
Gymnema Sylvestre ExtractCytochrome P450 3a4 (cyp3a4) Substrates, Cytochrome P450 1a2 (cyp1a2) Substrates Moderate
Interaction Summary
Theoretically, gymnema might increase levels of drugs metabolized by CYP3A4.
Read the full Gymnema Sylvestre Extract + Acetaminophen, Caffeine, Codeine interactionAcetaminophen, Caffeine, Codeine, SalicylamideCodalan No.1, Codalan No.2, Codalan No.3
How Acetaminophen, Caffeine, Codeine, Salicylamide interacts with Carb Blocker — through 1 ingredient. Tap an ingredient for the detail:
Gymnema Sylvestre ExtractCytochrome P450 1a2 (cyp1a2) Substrates, Cytochrome P450 3a4 (cyp3a4) Substrates Moderate
Interaction Summary
Theoretically, gymnema might increase levels of drugs metabolized by CYP1A2.
Read the full Gymnema Sylvestre Extract + Acetaminophen, Caffeine, Codeine, Salicylamide interactionAcetaminophen, Caffeine, DihydrocodeineDHC Plus, Panlor DC, Panlor SS
How Acetaminophen, Caffeine, Dihydrocodeine interacts with Carb Blocker — through 1 ingredient. Tap an ingredient for the detail:
Gymnema Sylvestre ExtractCytochrome P450 3a4 (cyp3a4) Substrates, Cytochrome P450 1a2 (cyp1a2) Substrates Moderate
Interaction Summary
Theoretically, gymnema might increase levels of drugs metabolized by CYP3A4.
Read the full Gymnema Sylvestre Extract + Acetaminophen, Caffeine, Dihydrocodeine interactionAcetaminophen, Caffeine, IsomethepteneMigralam
How Acetaminophen, Caffeine, Isometheptene interacts with Carb Blocker — through 1 ingredient. Tap an ingredient for the detail:
Gymnema Sylvestre ExtractCytochrome P450 1a2 (cyp1a2) Substrates, Cytochrome P450 3a4 (cyp3a4) Substrates Moderate
Interaction Summary
Theoretically, gymnema might increase levels of drugs metabolized by CYP1A2.
Read the full Gymnema Sylvestre Extract + Acetaminophen, Caffeine, Isometheptene interactionAcetaminophen, Caffeine, PyrilamineMidol Max Strength Menstrual
How Acetaminophen, Caffeine, Pyrilamine interacts with Carb Blocker — through 1 ingredient. Tap an ingredient for the detail:
Gymnema Sylvestre ExtractCytochrome P450 3a4 (cyp3a4) Substrates, Cytochrome P450 1a2 (cyp1a2) Substrates Moderate
Interaction Summary
Theoretically, gymnema might increase levels of drugs metabolized by CYP3A4.
Read the full Gymnema Sylvestre Extract + Acetaminophen, Caffeine, Pyrilamine interactionAcetaminophen, Chlorpheniramine Maleate, Dextromethorphan HbrVicks Formula 44M Cough, Cold & Flu Relief
How Acetaminophen, Chlorpheniramine Maleate, Dextromethorphan Hbr interacts with Carb Blocker — through 1 ingredient. Tap an ingredient for the detail:
Gymnema Sylvestre ExtractCytochrome P450 1a2 (cyp1a2) Substrates, Cytochrome P450 3a4 (cyp3a4) Substrates Moderate
Interaction Summary
Theoretically, gymnema might increase levels of drugs metabolized by CYP1A2.
Read the full Gymnema Sylvestre Extract + Acetaminophen, Chlorpheniramine Maleate, Dextromethorphan Hbr interactionAcetaminophen, Chlorpheniramine, Codeine, PhenylephrineColrex
How Acetaminophen, Chlorpheniramine, Codeine, Phenylephrine interacts with Carb Blocker — through 1 ingredient. Tap an ingredient for the detail:
Gymnema Sylvestre ExtractCytochrome P450 1a2 (cyp1a2) Substrates, Cytochrome P450 3a4 (cyp3a4) Substrates Moderate
Interaction Summary
Theoretically, gymnema might increase levels of drugs metabolized by CYP1A2.
Read the full Gymnema Sylvestre Extract + Acetaminophen, Chlorpheniramine, Codeine, Phenylephrine interactionAcetaminophen, Chlorpheniramine, DextromethorphanCoricidin II Extra Strength Cold and Flu
How Acetaminophen, Chlorpheniramine, Dextromethorphan interacts with Carb Blocker — through 1 ingredient. Tap an ingredient for the detail:
Gymnema Sylvestre ExtractCytochrome P450 3a4 (cyp3a4) Substrates, Cytochrome P450 1a2 (cyp1a2) Substrates Moderate
Interaction Summary
Theoretically, gymnema might increase levels of drugs metabolized by CYP3A4.
Read the full Gymnema Sylvestre Extract + Acetaminophen, Chlorpheniramine, Dextromethorphan interactionAcetaminophen, Chlorpheniramine, Dextromethorphan HydrobromideCoricidin HBP Maximum Strength Flu
How Acetaminophen, Chlorpheniramine, Dextromethorphan Hydrobromide interacts with Carb Blocker — through 1 ingredient. Tap an ingredient for the detail:
Gymnema Sylvestre ExtractCytochrome P450 1a2 (cyp1a2) Substrates, Cytochrome P450 3a4 (cyp3a4) Substrates Moderate
Interaction Summary
Theoretically, gymnema might increase levels of drugs metabolized by CYP1A2.
Read the full Gymnema Sylvestre Extract + Acetaminophen, Chlorpheniramine, Dextromethorphan Hydrobromide interactionAcetaminophen, Chlorpheniramine, Dextromethorphan, PhenylpropanolamineMulti Symptom Cold Relief
How Acetaminophen, Chlorpheniramine, Dextromethorphan, Phenylpropanolamine interacts with Carb Blocker — through 1 ingredient. Tap an ingredient for the detail:
Gymnema Sylvestre ExtractCytochrome P450 3a4 (cyp3a4) Substrates, Cytochrome P450 1a2 (cyp1a2) Substrates Moderate
Interaction Summary
Theoretically, gymnema might increase levels of drugs metabolized by CYP3A4.
Read the full Gymnema Sylvestre Extract + Acetaminophen, Chlorpheniramine, Dextromethorphan, Phenylpropanolamine interactionAcetaminophen, Chlorpheniramine, Dextromethorphan, PseudoephedrineChildren's Tylenol Cold Plus Cough, Tylenol Cold Ex Strength
How Acetaminophen, Chlorpheniramine, Dextromethorphan, Pseudoephedrine interacts with Carb Blocker — through 1 ingredient. Tap an ingredient for the detail:
Gymnema Sylvestre ExtractCytochrome P450 1a2 (cyp1a2) Substrates, Cytochrome P450 3a4 (cyp3a4) Substrates Moderate
Interaction Summary
Theoretically, gymnema might increase levels of drugs metabolized by CYP1A2.
Read the full Gymnema Sylvestre Extract + Acetaminophen, Chlorpheniramine, Dextromethorphan, Pseudoephedrine interactionAcetaminophen, Chlorpheniramine, Guaifenesin, Phenylephrine, SalicylamideRhinogesic GG
How Acetaminophen, Chlorpheniramine, Guaifenesin, Phenylephrine, Salicylamide interacts with Carb Blocker — through 1 ingredient. Tap an ingredient for the detail:
Gymnema Sylvestre ExtractCytochrome P450 3a4 (cyp3a4) Substrates, Cytochrome P450 1a2 (cyp1a2) Substrates Moderate
Interaction Summary
Theoretically, gymnema might increase levels of drugs metabolized by CYP3A4.
Read the full Gymnema Sylvestre Extract + Acetaminophen, Chlorpheniramine, Guaifenesin, Phenylephrine, Salicylamide interactionAcetaminophen, Chlorpheniramine, PhenylephrineAlka-Seltzer PLUS, Histex SR, Protid
How Acetaminophen, Chlorpheniramine, Phenylephrine interacts with Carb Blocker — through 1 ingredient. Tap an ingredient for the detail:
Gymnema Sylvestre ExtractCytochrome P450 1a2 (cyp1a2) Substrates, Cytochrome P450 3a4 (cyp3a4) Substrates Moderate
Interaction Summary
Theoretically, gymnema might increase levels of drugs metabolized by CYP1A2.
Read the full Gymnema Sylvestre Extract + Acetaminophen, Chlorpheniramine, Phenylephrine interactionAcetaminophen, Chlorpheniramine, Phenylephrine, SalicylamideRhinogesic, Rhinogesic JR
How Acetaminophen, Chlorpheniramine, Phenylephrine, Salicylamide interacts with Carb Blocker — through 1 ingredient. Tap an ingredient for the detail:
Gymnema Sylvestre ExtractCytochrome P450 1a2 (cyp1a2) Substrates, Cytochrome P450 3a4 (cyp3a4) Substrates Moderate
Interaction Summary
Theoretically, gymnema might increase levels of drugs metabolized by CYP1A2.
Read the full Gymnema Sylvestre Extract + Acetaminophen, Chlorpheniramine, Phenylephrine, Salicylamide interactionAcetaminophen, Chlorpheniramine, PhenylpropanolamineAlumadrine, Conex, Sinadrin Max Strength, Sinulin
How Acetaminophen, Chlorpheniramine, Phenylpropanolamine interacts with Carb Blocker — through 1 ingredient. Tap an ingredient for the detail:
Gymnema Sylvestre ExtractCytochrome P450 3a4 (cyp3a4) Substrates, Cytochrome P450 1a2 (cyp1a2) Substrates Moderate
Interaction Summary
Theoretically, gymnema might increase levels of drugs metabolized by CYP3A4.
Read the full Gymnema Sylvestre Extract + Acetaminophen, Chlorpheniramine, Phenylpropanolamine interactionAcetaminophen, Chlorpheniramine, Phenylpropanolamine, OpiumHista-Derfule
How Acetaminophen, Chlorpheniramine, Phenylpropanolamine, Opium interacts with Carb Blocker — through 1 ingredient. Tap an ingredient for the detail:
Gymnema Sylvestre ExtractCytochrome P450 1a2 (cyp1a2) Substrates, Cytochrome P450 3a4 (cyp3a4) Substrates Moderate
Interaction Summary
Theoretically, gymnema might increase levels of drugs metabolized by CYP1A2.
Read the full Gymnema Sylvestre Extract + Acetaminophen, Chlorpheniramine, Phenylpropanolamine, Opium interactionEach ingredient & the kinds of drugs it affects
For each ingredient in Carb Blocker with known interactions, here are the types of medications they can affect. Open any type for the detail — or search your exact drug in the checker above.
Gymnema sylvestre extract
Antidiabetes Drugs
Theoretically, taking gymnema with antidiabetes drugs might increase the risk of hypoglycemia.
Gymnema reduces blood glucose levels in some human and animal research. In human studies, it has been shown to enhance the blood glucose lowering effects of hypoglycemic drugs. However, other research in adults with prediabetes or metabolic syndrome suggests that gymnema does not reduce fasting levels of blood glucose. Until more is known, monitor blood glucose levels closely.
Cytochrome P450 1A2 (Cyp1A2) Substrates
Theoretically, gymnema might increase levels of drugs metabolized by CYP1A2.
Animal and in vitro research shows that gymnema can inhibit the CYP1A2 enzyme. In one animal study, oral administration of gymnema for 7 days increased the plasma concentrations of phenacetin, a CYP1A2 substrate, by about 1.4-fold and reduced the clearance of phenacetin by about 29%.
Cytochrome P450 2C9 (Cyp2C9) Substrates
Theoretically, gymnema might increase or decrease levels of drugs metabolized by CYP2C9.
Animal research shows that gymnema can induce the CYP2C9 enzyme. In one animal study, gymnema caused a 2.4-fold increase in the clearance of tolbutamide, a CYP2C9 substrate, in rats. In vitro research also shows that gymnema can inhibit CYP2C9.
Phenacetin
Theoretically, taking gymnema with phenacetin might increase the levels of phenacetin.
Animal research shows that gymnema, administered orally for 7 days, decreases the clearance of phenacetin in a dose-dependent manner by about 21% to 29% and increases plasma levels about 1.3- to 1.4-fold when compared to control.
Tolbutamide (Orinase)
Theoretically, taking gymnema with tolbutamide might the decrease levels of tolbutamide.
Animal research shows that gymnema, administered orally for 7 days, increases the clearance of tolbutamide by 2.4-fold when compared to control.
Cytochrome P450 3A4 (Cyp3A4) Substrates
Theoretically, gymnema might increase levels of drugs metabolized by CYP3A4.
One in vitro study using rat liver microsomes shows that gymnema can modestly inhibit the CYP3A4 enzyme. However, other in vitro research using human liver microsomes shows that gymnema does not affect CYP3A4 activity. Animal research also shows that gymnema does not alter the function of CYP3A4. In one study in rats, oral administration of gymnema for 7 days did not alter the clearance of amlodipine, a CYP3A4 substrate.
Fenugreek
Anticoagulant/Antiplatelet Drugs
Theoretically, fenugreek might have additive effects when used with anticoagulant or antiplatelet drugs.
Some of the constituents in fenugreek have antiplatelet effects in animal and in vitro research. However, common fenugreek products might not contain sufficient concentrations of these constituents for clinical effects. A clinical study in patients with coronary artery disease or diabetes shows that taking fenugreek seed powder 2.5 grams twice daily for 3 months does not affect platelet aggregation, fibrinolytic activity, or fibrinogen levels .
Antidiabetes Drugs
Theoretically, fenugreek seed might have additive hypoglycemic effects when used with antidiabetes drugs.
Clinical research shows that fenugreek seed can reduce fasting blood glucose and 2-hour postprandial glucose levels in adults with type 2 diabetes.
Clopidogrel (Plavix)
Theoretically, fenugreek seed might alter the clinical effects of clopidogrel by inhibiting its conversion to the active form.
Animal research shows that fenugreek seed 200 mg/kg daily for 14 days increases the maximum serum concentration of clopidogrel by 21%. It is unclear how this affects the pharmacokinetics of the active metabolite of clopidogrel; however, this study found that concomitant use of fenugreek seed and clopidogrel prolonged bleeding time by an additional 11%.
Metoprolol (Toprol)
Theoretically, fenugreek seed might have additive hypotensive effects when used with metoprolol.
Animal research shows that fenugreek seed 300 mg/kg daily for 2 weeks decreases systolic and diastolic blood pressure by 9% and 11%, respectively, when administered alone, and by 15% and 22%, respectively, when given with metoprolol 10 mg/kg.
Phenytoin (Dilantin)
Theoretically, fenugreek might decrease plasma levels of phenytoin.
Animal research shows that taking fenugreek seeds for 1 week decreases maximum concentrations and the area under the curve of a single dose of phenytoin by 44% and 72%, respectively. This seems to be related to increased clearance. So far, this interaction has not been reported in humans.
Sildenafil (Viagra)
Theoretically, concurrent use of sildenafil and fenugreek might reduce levels and therapeutic effects of sildenafil.
Animal research shows that taking fenugreek seeds for 1 week reduces maximum concentrations and the area under the curve of a single dose of sildenafil by 27% and 48%, respectively. So far, this interaction has not been reported in humans.
Theophylline
Theoretically, fenugreek may reduce the levels and clinical effects of theophylline.
Animal research shows that fenugreek 50 grams daily for 7 days reduces the maximum serum concentration (Cmax) of theophylline by 28% and the area under the plasma drug concentration-time curve (AUC) by 22%.
Warfarin (Coumadin)
Theoretically, fenugreek might have additive effects with warfarin and increase the international normalized ratio (INR).
Some fenugreek constituents have antiplatelet effects, although these might not be present in concentrations that are clinically significant. In one case report, a patient taking warfarin experienced an increased INR when starting to take fenugreek in combination with boldo.
Antihypertensive Drugs
Fenugreek may also have an additive effect on blood pressure-lowering medications. Studies on animals have shown that fenugreek seed can decrease both systolic and diastolic blood pressure by up to 22% when combined with metoprolol. Therefore, it is essential to monitor your blood pressure regularly if you are taking fenugreek and metoprolol together or any other antihypertensive drugs.
Phaseolus vulgaris
Antidiabetes Drugs
Theoretically, Phaseolus vulgaris might increase the risk of hypoglycemia when taken with antidiabetes drugs.
Small clinical studies suggest that Phaseolus vulgaris beans or bean pods, ingested alone or along with white mulberry leaf and bilberry, reduce blood glucose levels in some patients with diabetes.
Brand information
Manufacturer and brand details for Carb Blocker , from the product label.
Best Naturals
See all Best Naturals products- Name
- Best Naturals
- Street Address
- PO Box 394
- City
- Kenilworth
- State
- NJ
- ZipCode
- 07033
- Phone Number
- 1-877-659-6004
- Web Address
- www.shopbestnaturals.com
Carb Blocker by Best Naturals: Common Questions
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The Full Monographs Behind Carb Blocker ’s Ingredients
Every ingredient we hold a full HelloPharmacist monograph for — uses, evidence, safety, and the complete interaction list.
Fenugreek
Interacts with 389 drugsFenugreek is a common kitchen spice that is also taken as a supplement, mainly for blood sugar, cholesterol, and to support breast milk production. Some early research is encouraging for blo...
Read the full Fenugreek monograph → Herb & supplement monographPhaseolus Vulgaris
Interacts with 86 drugsPhaseolus vulgaris, the common bean, is widely eaten as food, and a concentrated white bean extract is marketed as a 'carb blocker' for weight loss. Some small studies suggest it may modestl...
Read the full Phaseolus Vulgaris monograph → Herb & supplement monographGymnema
Interacts with 851 drugsGymnema is an Ayurvedic herb best known for possibly helping lower blood sugar and reducing the taste of sweetness on the tongue. Some early human studies are encouraging for blood sugar sup...
Read the full Gymnema monograph →Sources & How We Checked
Carb Blocker '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 53 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.
Fenugreek 30 references
- Madar Z, Thorne R. Dietary fiber. Prog Food Nutr Sci 1987;11:153-74.
- Sharma RD, Raghuram TC, Rao NS. Effect of fenugreek seeds on blood glucose and serum lipids in type I diabetes. Eur J Clin Nutr 1990;44:301-6.
- Patil SP, Niphadkar PV, Bapat MM. Allergy to fenugreek (Trigonella foenum graecum). Ann Allergy Asthma Immunol 1997;78:297-300. PubMed
- Lambert J, Cormier J. Potential interaction between warfarin and boldo-fenugreek. Pharmacotherapy 2001;21:509-12. PubMed
- Bordia A, Verma SK, Srivastava KC. Effect of ginger (Zingiber officinale Rosc.) and fenugreek (Trigonella foenumgraecum L.) on blood lipids, blood sugar and platelet aggregation in patients with coronary artery disease. Prostaglandins Leukot Essent Fatty PubMed
- Yalcin SS, Tekinalp G, Ozalp I. Peculiar odor of traditional food and maple syrup urine disease. Pediatr Int 1999;41:108-9. PubMed
- Sewell AC, Mosandl A, Bohles H. False diagnosis of maple syrup urine disease owing to ingestion of herbal tea. N Engl J Med 1999;341:769.. PubMed
- Abdo MS, al-Kafawi AA. Experimental studies on the effect of Trigonella foenum-graecum (abstract). Planta Med 1969;17:14-8.
- Gupta A, Gupta R, Lal B. Effect of Trigonella foenum-graecum (fenugreek) seeds on glycaemic control and insulin resistance in type 2 diabetes mellitus: a double blind placebo controlled study. J Assoc Physicians India 2001;49:1057-61.
- Gabay MP. Galactogogues: medications that induce lactation. J Hum Lact 2002;18:274-9. PubMed
- Chevassus H, Gaillard JB, Farret A, et al. A fenugreek seed extract selectively reduces spontaneous fat intake in overweight subjects. Eur J Clin Pharmacol 2010;66(5):449-55. PubMed
- Turkyilmaz C, Onal E, Hirfanoglu IM, et al. The effect of galactagogue herbal tea on breast milk production and short-term catch-up of birth weight in the first week of life. J Altern Complement Med 2011;17(2):139-42. PubMed
- Swafford S, Berens P. Effect of fenugreek on breast milk volume. Abstract presented at: 5th International Meeting of the Academy of Breastfeeding Medicine; September 11-13,2000, Tucson, Arizona.
- Abdel-Barry, J. A., Abdel-Hassan, I. A., Jawad, A. M., and al Hakiem, M. H. Hypoglycaemic effect of aqueous extract of the leaves of Trigonella foenum-graecum in healthy volunteers. East Mediterr.Health J 2000;6(1):83-88. DOI
- Parvizpur, A., Ahmadiani, A., and Kamalinejad, M. Probable role of spinal purinoceptors in the analgesic effect of Trigonella foenum (TFG) leaves extract. J Ethnopharmacol 3-8-2006;104(1-2):108-112. PubMed
- Mora, A., Herrrera, A., Lopez, C., Dahbi, G., Mamani, R., Pita, J. M., Alonso, M. P., Llovo, J., Bernardez, M. I., Blanco, J. E., Blanco, M., and Blanco, J. Characteristics of the Shiga-toxin-producing enteroaggregative Escherichia coli O104:H4 German ou
- Blanco, J. [Stx2a-producing enteroaggregative Escherichia coli O104:H4-ST678. Microbiological diagnostic already, for this and other STEC/VTEC serotypes!]. Enferm.Infecc.Microbiol.Clin. 2012;30(2):84-89.
- Beutin, L. and Martin, A. Outbreak of Shiga toxin-producing Escherichia coli (STEC) O104:H4 infection in Germany causes a paradigm shift with regard to human pathogenicity of STEC strains. J Food Prot. 2012;75(2):408-418. PubMed
- King LA, Nogareda F, Weill FX, Mariani-Kurkdjian P, Loukiadis E, Gault G, Jourdan-DaSilva N, Bingen E, Macé M, Thevenot D, Ong N, Castor C, Noël H, Van Cauteren D, Charron M, Vaillant V, Aldabe B, Goulet V, Delmas G, Couturier E, Le Strat Y, Combe C, Delm
- Reeder C, Legrand A, O'Connor-Von SK. The Effect of Fenugreek on Milk Production and Prolactin Levels in Mothers of Preterm Infants. Clinical Lactation 2013;4(4):159-165. DOI
- Al-Jenoobi FI, Ahad A, Mahrous GM, Al-Mohizea AM, AlKharfy KM, Al-Suwayeh SA. Effects of fenugreek, garden cress, and black seed on theophylline pharmacokinetics in beagle dogs. Pharm Biol 2015;53(2):296-300. PubMed
- Rao A, Steels E, Inder WJ, Abraham S, Vitetta L. Testofen, a specialised Trigonella foenum-graecum seed extract reduces age-related symptoms of androgen decrease, increases testosterone levels and improves sexual function in healthy aging males in a doubl
- Steels E, Rao A, Vitetta L. Physiological aspects of male libido enhanced by standardized Trigonella foenum-graecum extract and mineral formulation. Phytother Res. 2011 Sep;25(9):1294-300.
- Gong J, Fang K, Dong H, Wang D, Hu M, Lu F. Effect of fenugreek on hyperglycaemia and hyperlipidemia in diabetes and prediabetes: A meta-analysis. J Ethnopharmacol. 2016 Dec 24;194:260-268. PubMed
- Ouzir M, El Bairi K, Amzazi S. Toxicological properties of fenugreek (Trigonella foenum graecum). Food Chem Toxicol. 2016 Oct;96:145-54. PubMed
- Khodamoradi K, Khosropanah MH, Ayati Z, et al. The Effects of Fenugreek on Cardiometabolic Risk Factors in Adults: A Systematic Review and Meta-analysis. Complement Ther Med. 2020;52:102416. PubMed
- Alkharfy K, Jan B, Alotaibi K, et al. Clopidogrel-herb Interactions: A Pharmacokinetic and Pharmacodynamic Assessment in a Rat Model. Curr Drug Metab 2021;22(12):969-977. PubMed
- Bin Jardan YA, Ahad A, Raish M, Alam MA, Al-Mohizea AM, Al-Jenoobi FI. Effects of garden cress, fenugreek and black seed on the pharmacodynamics of metoprolol: an herb-drug interaction study in rats with hypertension. Pharm Biol 2021;59(1):1088-1097. PubMed
- Al-Mohizea AM, Ahad A, El-Maghraby GM, et al. Effects of Nigella sativa, Lepidium sativum and Trigonella foenum-graecum on sildenafil disposition in beagle dogs. Eur J Drug Metab Pharmacokinet. 2015;40(2):219-24. PubMed
- Alkharfy KM, Al-Jenoobi FI, Al-Mohizea AM, et al. Effects of Lepidium sativum, Nigella sativa and Trigonella foenum-graceum on phenytoin pharmacokinetics in beagle dogs. Phytother Res. 2013;27(12):1800-4.
Phaseolus Vulgaris 11 references
- Gruenwald J, Brendler T, Jaenicke C. PDR for Herbal Medicines. 1st ed. Montvale, NJ: Medical Economics Company, Inc., 1998.
- Birketvedt GS, Travis A, Langbakk B, Florholmen JR. Dietary supplementation with bean extract improves lipid profile in overweight and obese subjects. Nutrition 2002;18:729-33.. PubMed
- FDA Center for Food Safety and Nutrition. What are some of the questionable weight loss products? http://www.cfsan.fda.gov/~dms/qa-nut4.html. (Accessed 20 December 2003).
- Onakpoya I, Aldaas S, Terry R, Ernst E. The efficacy of Phaseolus vulgaris as a weight-loss supplement: a systematic review and meta-analysis of randomised clinical trials. Br J Nutr 2011;106:196-202.
- Rodhouse JC, Haugh CA, Roberts D, Gilbert RJ. Red kidney bean poisoning in the UK: an analysis of 50 suspected incidents between 1976 and 1989. Epidemiol Infect 1990;105(3):485-91. PubMed
- Spiewak R, Dutkiewicz J. Occupational contact dermatitis to Phaseolus vulgaris in a farmer - a case report. Ann Agric Environ Med 2000;7(1):55-9.
- Tjokroprawiro A, Pikir BS, Budhiarta AA, et al. Metabolic effects of onion and green beans on diabetic patients. Tohoku J Exp Med 1983;141 Suppl:671-6. PubMed
- Boivin M, Flourie B, Rizza RA, Go VL, DiMagno EP. Gastrointestinal and metabolic effects of amylase inhibition in diabetics. Gastroenterology. 1988;94(2):387-94. PubMed
- Ionescu-Tirgoviste, C., Popa, E., Mirodon, Z., Simionescu, M., and Mincu, I. [The effect of a plant mixture on the metabolic equilibrium in patients with type-2 diabetes mellitus]. Rev.Med Interna Neurol.Psihiatr.Neurochir.Dermatovenerol.Med Interna 1989
- He S, Simpson BK, Sun H, et al. Phaseolus vulgaris lectins: a systematic review of characteristics and health implications. Crit Rev Food Sci Nutr 2015 Oct 19:0. PubMed
- Jalal SM, Alsultan AA, Alotaibi HH, Mary E, Alabdullatif AAI. Effect of Phaseolus vulgaris on urinary biochemical parameters among patients with kidney stones in Saudi Arabia. Nutrients. 2020 Oct 30;12(11):3346. PubMed
Gymnema 12 references
- Shanmugasundaram ER, Rajeswari G, Baskaran K, et al. Use of Gymnema sylvestre leaf extract in the control of blood glucose in insulin-dependent diabetes mellitus. J Ethnopharmacol 1990;30:281-94. PubMed
- Baskaran K, Kizar Ahamath B, Radha Shanmugasundaram K, Shanmugasundaram ER. Antidiabetic effect of leaf extract from Gymnema sylvestre in non-insulin-dependent diabetes mellitus patients. J Ethnopharmacol 1990;30:295-300.
- Kamble B, Gupta A, Moothedath I, Khatal L, Janrao S, Jadhav A, et al. Effects of Gymnema sylvestre extract on the pharmacokinetics and pharmacodynamics of glimepiride in streptozotocin induced diabetic rats. Chem Biol Interact. 2016;245:30-8. PubMed
- Tiwari P, Mishra BN, Sangwan NS. Phytochemical and pharmacological properties of Gymnema sylvestre: an important medicinal plant. Biomed Res Int. 2014; 2014:830285.
- Fabio GD, Romanucci V, De Marco A, Zarrelli A. Triterpenoids from Gymnema sylvestre and their pharmacological activities. Molecules. 2014;19(8):10956-81. PubMed
- Shiyovich A, Sztarkier I, Nesher L. Toxic hepatitis induced by Gymnema sylvestre, a natural remedy for type 2 diabetes mellitus. Am J Med Sci. 2010;340(6):514-7. PubMed
- Zuniga LY, Gonzalez-Ortiz M, Martinez-Abundis E. Effect of gymnema sylvestre administration on metabolic syndrome, insulin sensitivity, and insulin secretion. J Med Food. 2017 Aug;20(8):750-54.
- Rammohan B, Samit K, Chinmoy D, et al. Human cytochrome P450 enzyme modulation by gymnema sylvestre: a predictive safety evaluation by LC-MS/MS. Pharmacogn Mag. 2016 Jul;12(Suppl 4):S389-S394.
- Vaghela M, Sahu N, Kharkar P, Pandita N. In vivo pharmacokinetic interaction by ethanolic extract of gymnema sylvestre with CYP2C9 (tolbutamide), CYP3A4 (amlodipine) and CYP1A2 (phenacetin) in rats. Chem Biol Interact. 2017 Dec 25;278:141-151. PubMed
- Vaghela M, Iyer K, Pandita N. In vitro inhibitory effect of gymnema sylvestre extracts and total gymnemic acids fraction on select cytochrome P450 activities in rat liver microsomes. Eur J Drug Metab Pharmacokinet. 2017 Oct 10. PubMed
- Gaytán Martínez LA, Sánchez-Ruiz LA, Zuñiga LY, González-Ortiz M, Martínez-Abundis E. Effect of Gymnema sylvestre administration on glycemic control, insulin secretion, and insulin sensitivity in patients with impaired glucose tolerance. J Med Food. 2021;
- Philips CA, Theruvath AH, Ravindran R. Toxic hepatitis-associated aplastic anaemia after dual homeopathic remedies and Gymnema sylvestre use. BMJ Case Rep 2022;15(3):e247867. PubMed
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