Maxi GS 500 Ingredients & Drug Interactions
by Maxi Health
What is this page for?
First and foremost: checking Maxi GS 500 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
Maxi GS 500 is a dietary supplement by Maxi Health with 2 active ingredients. Its ingredients are commonly taken for morning sickness in pregnancy, premenstrual syndrome (pms), preventing or treating b6 deficiency.Based on those ingredients, 380 medications have a known interaction with it, the most serious rated major. The ingredients most likely to interact are Vitamin B6, D-Glucosamine Sulfate. Use the checker below to test your specific medication, or read the full HelloPharmacist Interaction Report.
Check Your Meds Against Maxi GS 500 by Maxi Health
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HelloPharmacist Scorecard of Maxi GS 500 by Maxi Health
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
Maxi GS 500 contains two active ingredients: vitamin B6 and D-glucosamine sulfate. Vitamin B6 is used for conditions such as vitamin B6 deficiency, sideroblastic anemia, and pyridoxine-dependent epilepsy, as well as hyperhomocysteinemia and nausea and vomiting in pregnancy.
D-glucosamine sulfate is the form most often used for joint support in osteoarthritis. The inactive ingredients include cellulose, rice flour, calcium carbonate, bromelain, papain, lipase, amylase, protease, and silica.
These are fillers and processing aids, not active ingredients.
Does it work?
Couldn't assess
Vitamin B6 is rated Effective for sideroblastic anemia, vitamin B6 deficiency, and pyridoxine-dependent epilepsy. It is rated Likely Effective for hyperhomocysteinemia and Possibly Effective for nausea and vomiting in pregnancy.
Glucosamine sulfate is rated Likely Effective for osteoarthritis. Its ratings for aging skin, back pain, colorectal cancer, and fatty liver disease (MASLD) are Insufficient Reliable Evidence To Rate, so the evidence for those uses is not established in the data we hold.
How safe is it?
Well-documented data
Vitamin B6 is generally well tolerated in doses below 100 mg daily. Its safety notes advise caution: normal amounts from food and standard supplements are considered fine, but high doses taken over time can harm nerves (sensory neuropathy).
Common side effects include nausea, headache, heartburn, and loss of appetite. Glucosamine is generally well tolerated by most adults, though quality and benefit vary.
Some people may have allergic reactions, and rare cases of asthma flare-ups have been reported with glucosamine-chondroitin products. The pregnancy and breastfeeding entry for glucosamine has no rating on file, so there isn't enough information to know either way.
Talk with your doctor for advice specific to you.
Meds to double-check
Major interaction found
Double-check with your own doctor or pharmacist before taking this product if you use a blood thinner such as warfarin, which carries a Major rating. Also check blood pressure medicines, amiodarone, phenobarbital, phenytoin, and topoisomerase II inhibitors, which carry Moderate ratings.
Minor interactions are documented for levodopa, acetaminophen, and antidiabetes drugs.
The bottom line
Scorecard at a glanceFully disclosed formula with no assessable stated purpose. Major medication interactions have been identified, and safety information is well characterized.
This product may be of interest to adults looking for vitamin B6 or glucosamine support, particularly for osteoarthritis. People who take warfarin, blood pressure medicines, seizure medicines, amiodarone, or other drugs listed here should be careful.
Talk it over with your own doctor or pharmacist before starting.
Educational only — not medical advice; always confirm with your pharmacist. Our editorial policy · How we use AI
Assessment coverage: 2 of 2 active ingredients matched to our full ingredient reviews (monographs). Based on the product label dated Jan 23, 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 Maxi GS 500, straight from the product label.
| Brand | Maxi Health |
|---|---|
| Barcode (UPC) | 753406114184 |
| Net contents | 180 Maxicap(s) |
| Market status | On market |
| Date entered into DSLD | Jan 23, 2025 |
| DSLD ID | 323790 |
| Product type | Other Combinations |
| Supplement form | Capsule |
| Dietary claims / uses | Nutrient, All Other, Structure/Function |
| Intended target group(s) | Vegetarian, Adult (18 - 50 Years), Kosher, 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 Maxi GS 500 by Maxi Health, sourced from the NIH Dietary Supplement Label Database.
Supplement Facts
| Ingredient | Amount | % DV |
|---|---|---|
| Vitamin B6 | 3 mg | 150% |
| D-Glucosamine Sulfate | 1500 mg | -- |
Other ingredients: Cellulose, Rice Flour, Calcium Carbonate, Bromelain, Papain, Lipase, Amylase, Protease, Silica
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.
Suggested/Recommended/Usage/Directions
Directions: Take three (3) Maxicaps daily with meals, or as directed.
FDA Disclaimer Statement
This statement has not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.
Formula
Certified Kosher UK (Rav Shmuel Dovid Krausz (Udvarer Rav)) (Kosher) BDZ Edah Charedis - Orthodox Council of Jerusalem (Kosher)
Glucosamine with B6 - Sodium free Enzymax base
OU (Kosher)
Seals/Symbols
UK (Rav Shmuel Dovid Krausz (Udvarer Rav)) (Kosher) BDZ Edah Charedis - Orthodox Council of Jerusalem (Kosher)
OU (Kosher)
General Statements
Doctor formulated
Brand IP Statement(s)
Maxi Health True to total wellness
Enzymax, a vital digestive enzyme complex, is a registered trademark of Maxi Health Research LLC.
FDA Statement of Identity
Dietary Supplement
Formulation
Bone & joint
Support at arm's length
This product contains no soy, wheat, salt, milk, sugar, yeast, gluten, artificial flavors, colorings or preservatives.
This product was manufactured in a GMP Certified Facility.
Glucosamine with B6 - Sodium free
Storage
Store tightly closed in a cool, dry place.
Precautions
Keep out of reach of children.
Is this label outdated? Report a formula or label change and our pharmacy team will review it.
Maxi GS 500 by Maxi Health 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 Maxi GS 500 by Maxi Health
These are the 2 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.
Vitamin B6
Interacts with210 drugs
Vitamin B6 (pyridoxine) is an essential water-soluble vitamin that your body needs for metabolism, brain function, and making red blood cells. It is b...
Vitamin B6 monograph & interactionsD-Glucosamine Sulfate
Interacts with170 drugs
Glucosamine is a natural compound found in cartilage and joint fluid, and it is one of the most popular supplements for osteoarthritis, especially of...
D-Glucosamine Sulfate monograph & interactionsOther (inactive) ingredients: Cellulose, Rice Flour, Calcium Carbonate, Bromelain, Papain, Lipase, Amylase, Protease, Silica. These complete the product’s ingredient list but are not active constituents.
Maxi GS 500 by Maxi Health Drug Interactions
HelloPharmacist Interaction Report
Maxi GS 500 from Maxi Health can interact with medications through both of its active ingredients, vitamin B6 and D-glucosamine sulfate.
The most serious finding is glucosamine with warfarin (Coumadin), a blood thinner (anticoagulant), rated Major. Glucosamine might increase warfarin's effect and the risk of bruising and bleeding, and case reports describe rising results on a blood-clotting test (INR) in people already stable on warfarin.
Read the full breakdown — every affected drug type, severity by severity
Several other drug types carry Moderate ratings. Vitamin B6 may add to blood pressure medicines (antihypertensives) and lower blood pressure.
It may also increase sun sensitivity with amiodarone, a heart rhythm drug. High doses of B6 may lower the levels and effects of the seizure medicines phenobarbital and phenytoin.
Glucosamine may reduce the effect of topoisomerase II inhibitors, certain cancer drugs, though this has only been seen in lab research.
Minor interactions are also documented. Vitamin B6 may reduce the effect of levodopa, a Parkinson's medicine, when taken alone but not with carbidopa.
Glucosamine may reduce pain control when combined with acetaminophen (Tylenol), based on anecdotal reports. Concern about antidiabetes drugs was raised, but it is considered unlikely to interfere.
Altogether, these interactions span 380 individual medications. To check your exact medications, use the search tool on this page.
Check your own medications below · Editorial policy · How we use AI
Want to check YOUR meds against Maxi GS 500?
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 Maxi GS 500 interact with 380 drugs. Click any drug to see the details.
2 of the 2 ingredients in Maxi GS 500 interact with drugs. Each result below shows which ingredient is responsible. Vitamin B6 D-Glucosamine Sulfate
Chlorothiazide, MethyldopaAldochlor, Aldoclor 150, Aldoclor 250
How Chlorothiazide, Methyldopa interacts with Maxi GS 500 — through 1 ingredient. Tap an ingredient for the detail:
Vitamin B6Antihypertensive Drugs Moderate
Interaction Summary
Theoretically, vitamin B6 may have additive effects when used with antihypertensive drugs.
Read the full Vitamin B6 + Chlorothiazide, Methyldopa interactionChlorothiazide, ReserpineDiupres
How Chlorothiazide, Reserpine interacts with Maxi GS 500 — through 1 ingredient. Tap an ingredient for the detail:
Vitamin B6Antihypertensive Drugs Moderate
Interaction Summary
Theoretically, vitamin B6 may have additive effects when used with antihypertensive drugs.
Read the full Vitamin B6 + Chlorothiazide, Reserpine interactionChlorthalidoneHygroton, Thalitone
How Chlorthalidone interacts with Maxi GS 500 — through 1 ingredient. Tap an ingredient for the detail:
Vitamin B6Antihypertensive Drugs Moderate
Interaction Summary
Theoretically, vitamin B6 may have additive effects when used with antihypertensive drugs.
Read the full Vitamin B6 + Chlorthalidone interactionChlorthalidone, ClonidineClorpres, Combipres
How Chlorthalidone, Clonidine interacts with Maxi GS 500 — through 1 ingredient. Tap an ingredient for the detail:
Vitamin B6Antihypertensive Drugs Moderate
Interaction Summary
Theoretically, vitamin B6 may have additive effects when used with antihypertensive drugs.
Read the full Vitamin B6 + Chlorthalidone, Clonidine interactionCilazaprilInhibace
How Cilazapril interacts with Maxi GS 500 — through 1 ingredient. Tap an ingredient for the detail:
Vitamin B6Antihypertensive Drugs Moderate
Interaction Summary
Theoretically, vitamin B6 may have additive effects when used with antihypertensive drugs.
Read the full Vitamin B6 + Cilazapril interactionClevidipineCleviprex
How Clevidipine interacts with Maxi GS 500 — through 1 ingredient. Tap an ingredient for the detail:
Vitamin B6Antihypertensive Drugs Moderate
Interaction Summary
Theoretically, vitamin B6 may have additive effects when used with antihypertensive drugs.
Read the full Vitamin B6 + Clevidipine interactionClonidineCatapres
How Clonidine interacts with Maxi GS 500 — through 1 ingredient. Tap an ingredient for the detail:
Vitamin B6Antihypertensive Drugs Moderate
Interaction Summary
Theoretically, vitamin B6 may have additive effects when used with antihypertensive drugs.
Read the full Vitamin B6 + Clonidine interactionCryptenamine, MethyclothiazideDiutensen
How Cryptenamine, Methyclothiazide interacts with Maxi GS 500 — through 1 ingredient. Tap an ingredient for the detail:
Vitamin B6Antihypertensive Drugs Moderate
Interaction Summary
Theoretically, vitamin B6 may have additive effects when used with antihypertensive drugs.
Read the full Vitamin B6 + Cryptenamine, Methyclothiazide interactionCyclothiazideAnhydron, Fluidil
How Cyclothiazide interacts with Maxi GS 500 — through 1 ingredient. Tap an ingredient for the detail:
Vitamin B6Antihypertensive Drugs Moderate
Interaction Summary
Theoretically, vitamin B6 may have additive effects when used with antihypertensive drugs.
Read the full Vitamin B6 + Cyclothiazide interactionDaunorubicin CitrateDaunoXome
How Daunorubicin Citrate interacts with Maxi GS 500 — through 1 ingredient. Tap an ingredient for the detail:
D-glucosamine SulfateTopoisomerase Ii Inhibitors Moderate
Interaction Summary
Theoretically glucosamine may induce resistance to topoisomerase II inhibitors.
Read the full D-glucosamine Sulfate + Daunorubicin Citrate interactionDaunorubicin HydrochlorideCerubidine
How Daunorubicin Hydrochloride interacts with Maxi GS 500 — through 1 ingredient. Tap an ingredient for the detail:
D-glucosamine SulfateTopoisomerase Ii Inhibitors Moderate
Interaction Summary
Theoretically glucosamine may induce resistance to topoisomerase II inhibitors.
Read the full D-glucosamine Sulfate + Daunorubicin Hydrochloride interactionDaunorubicin, CytarabineVyxeos
How Daunorubicin, Cytarabine interacts with Maxi GS 500 — through 1 ingredient. Tap an ingredient for the detail:
D-glucosamine SulfateTopoisomerase Ii Inhibitors Moderate
Interaction Summary
Theoretically glucosamine may induce resistance to topoisomerase II inhibitors.
Read the full D-glucosamine Sulfate + Daunorubicin, Cytarabine interactionDehydrocholic Acid, Homatropine Methylbromide, PhenobarbitalG.B.S.
How Dehydrocholic Acid, Homatropine Methylbromide, Phenobarbital interacts with Maxi GS 500 — through 1 ingredient. Tap an ingredient for the detail:
Vitamin B6Phenobarbital (luminal) Moderate
Interaction Summary
High doses of vitamin B6 may reduce the levels and clinical effects of phenobarbital.
Read the full Vitamin B6 + Dehydrocholic Acid, Homatropine Methylbromide, Phenobarbital interactionDeserpidineHarmonyl
How Deserpidine interacts with Maxi GS 500 — through 1 ingredient. Tap an ingredient for the detail:
Vitamin B6Antihypertensive Drugs Moderate
Interaction Summary
Theoretically, vitamin B6 may have additive effects when used with antihypertensive drugs.
Read the full Vitamin B6 + Deserpidine interactionDeserpidine, HydrochlorothiazideOreticyl, Oreticyl Forte
How Deserpidine, Hydrochlorothiazide interacts with Maxi GS 500 — through 1 ingredient. Tap an ingredient for the detail:
Vitamin B6Antihypertensive Drugs Moderate
Interaction Summary
Theoretically, vitamin B6 may have additive effects when used with antihypertensive drugs.
Read the full Vitamin B6 + Deserpidine, Hydrochlorothiazide interactionDeserpidine, MethyclothiazideEnduronyl, Enduronyl Forte
How Deserpidine, Methyclothiazide interacts with Maxi GS 500 — through 1 ingredient. Tap an ingredient for the detail:
Vitamin B6Antihypertensive Drugs Moderate
Interaction Summary
Theoretically, vitamin B6 may have additive effects when used with antihypertensive drugs.
Read the full Vitamin B6 + Deserpidine, Methyclothiazide interactionDicyclomine, PhenobarbitalBentyl w/ Pb
How Dicyclomine, Phenobarbital interacts with Maxi GS 500 — through 1 ingredient. Tap an ingredient for the detail:
Vitamin B6Phenobarbital (luminal) Moderate
Interaction Summary
High doses of vitamin B6 may reduce the levels and clinical effects of phenobarbital.
Read the full Vitamin B6 + Dicyclomine, Phenobarbital interactionDiltiazemAdizem-SR, Adizem-XL, Angitil SR, Angitil XL, Calcicard CR, Cardizem +23 more
How Diltiazem interacts with Maxi GS 500 — through 1 ingredient. Tap an ingredient for the detail:
Vitamin B6Antihypertensive Drugs Moderate
Interaction Summary
Theoretically, vitamin B6 may have additive effects when used with antihypertensive drugs.
Read the full Vitamin B6 + Diltiazem interactionDiltiazem, EnalaprilTeczem
How Diltiazem, Enalapril interacts with Maxi GS 500 — through 1 ingredient. Tap an ingredient for the detail:
Vitamin B6Antihypertensive Drugs Moderate
Interaction Summary
Theoretically, vitamin B6 may have additive effects when used with antihypertensive drugs.
Read the full Vitamin B6 + Diltiazem, Enalapril interactionDoxazosin MesylateCardura
How Doxazosin Mesylate interacts with Maxi GS 500 — through 1 ingredient. Tap an ingredient for the detail:
Vitamin B6Antihypertensive Drugs Moderate
Interaction Summary
Theoretically, vitamin B6 may have additive effects when used with antihypertensive drugs.
Read the full Vitamin B6 + Doxazosin Mesylate interactionDoxorubicinAdriamycin, Caelyx, Doxil, Myocet, Rubex
How Doxorubicin interacts with Maxi GS 500 — through 1 ingredient. Tap an ingredient for the detail:
D-glucosamine SulfateTopoisomerase Ii Inhibitors Moderate
Interaction Summary
Theoretically glucosamine may induce resistance to topoisomerase II inhibitors.
Read the full D-glucosamine Sulfate + Doxorubicin interactionDyphylline, Ephedrine, Guaifenesin, PhenobarbitalLufyllin-EPG
How Dyphylline, Ephedrine, Guaifenesin, Phenobarbital interacts with Maxi GS 500 — through 1 ingredient. Tap an ingredient for the detail:
Vitamin B6Phenobarbital (luminal) Moderate
Interaction Summary
High doses of vitamin B6 may reduce the levels and clinical effects of phenobarbital.
Read the full Vitamin B6 + Dyphylline, Ephedrine, Guaifenesin, Phenobarbital interactionEnalapril MaleateEpaned, Vasotec
How Enalapril Maleate interacts with Maxi GS 500 — through 1 ingredient. Tap an ingredient for the detail:
Vitamin B6Antihypertensive Drugs Moderate
Interaction Summary
Theoretically, vitamin B6 may have additive effects when used with antihypertensive drugs.
Read the full Vitamin B6 + Enalapril Maleate interactionEnalapril Maleate, FelodipineLexxel
How Enalapril Maleate, Felodipine interacts with Maxi GS 500 — through 1 ingredient. Tap an ingredient for the detail:
Vitamin B6Antihypertensive Drugs Moderate
Interaction Summary
Theoretically, vitamin B6 may have additive effects when used with antihypertensive drugs.
Read the full Vitamin B6 + Enalapril Maleate, Felodipine interactionEnalapril Maleate, HydrochlorothiazideVaseretic
How Enalapril Maleate, Hydrochlorothiazide interacts with Maxi GS 500 — through 1 ingredient. Tap an ingredient for the detail:
Vitamin B6Antihypertensive Drugs Moderate
Interaction Summary
Theoretically, vitamin B6 may have additive effects when used with antihypertensive drugs.
Read the full Vitamin B6 + Enalapril Maleate, Hydrochlorothiazide interactionEphedrine, Guaifenesin, Phenobarbital, TheophyllineMudrane GG
How Ephedrine, Guaifenesin, Phenobarbital, Theophylline interacts with Maxi GS 500 — through 1 ingredient. Tap an ingredient for the detail:
Vitamin B6Phenobarbital (luminal) Moderate
Interaction Summary
High doses of vitamin B6 may reduce the levels and clinical effects of phenobarbital.
Read the full Vitamin B6 + Ephedrine, Guaifenesin, Phenobarbital, Theophylline interactionEphedrine, Phenobarbital, Potassium Iodide, TheophyllineMudrane, Quadrinal
How Ephedrine, Phenobarbital, Potassium Iodide, Theophylline interacts with Maxi GS 500 — through 1 ingredient. Tap an ingredient for the detail:
Vitamin B6Phenobarbital (luminal) Moderate
Interaction Summary
High doses of vitamin B6 may reduce the levels and clinical effects of phenobarbital.
Read the full Vitamin B6 + Ephedrine, Phenobarbital, Potassium Iodide, Theophylline interactionEphedrine, Phenobarbital, TheophyllineTedral
How Ephedrine, Phenobarbital, Theophylline interacts with Maxi GS 500 — through 1 ingredient. Tap an ingredient for the detail:
Vitamin B6Phenobarbital (luminal) Moderate
Interaction Summary
High doses of vitamin B6 may reduce the levels and clinical effects of phenobarbital.
Read the full Vitamin B6 + Ephedrine, Phenobarbital, Theophylline interactionEpirubicinEllence
How Epirubicin interacts with Maxi GS 500 — through 1 ingredient. Tap an ingredient for the detail:
D-glucosamine SulfateTopoisomerase Ii Inhibitors Moderate
Interaction Summary
Theoretically glucosamine may induce resistance to topoisomerase II inhibitors.
Read the full D-glucosamine Sulfate + Epirubicin interactionEplerenoneInspra
How Eplerenone interacts with Maxi GS 500 — through 1 ingredient. Tap an ingredient for the detail:
Vitamin B6Antihypertensive Drugs Moderate
Interaction Summary
Theoretically, vitamin B6 may have additive effects when used with antihypertensive drugs.
Read the full Vitamin B6 + Eplerenone interactionEach ingredient & the kinds of drugs it affects
For each ingredient in Maxi GS 500 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.
Vitamin B6
Amiodarone (Cordarone)
Theoretically, vitamin B6 might increase the photosensitivity caused by amiodarone.
Despite initial case reports suggesting that pyridoxine may have a protective effect against amiodarone-induced photosensitivity, preliminary clinical research suggests that pyridoxine may actually exacerbate this adverse effect.
Antihypertensive Drugs
Theoretically, vitamin B6 may have additive effects when used with antihypertensive drugs.
Research in hypertensive rats shows that vitamin B6 can decrease systolic blood pressure. Similarly, clinical research in patients with hypertension shows that taking high doses of vitamin B6 may reduce systolic and diastolic blood pressure, possibly by reducing plasma levels of epinephrine and norepinephrine.
Phenobarbital (Luminal)
High doses of vitamin B6 may reduce the levels and clinical effects of phenobarbital.
Preliminary clinical evidence suggests that vitamin B6 200 mg daily can reduce plasma levels of phenobarbital, possibly by increasing metabolism. It is not known whether lower doses have any effect. Advise people taking phenobarbital to avoid high doses of vitamin B6.
Phenytoin (Dilantin)
High doses of vitamin B6 may reduce the levels and clinical effects of phenytoin.
Preliminary clinical evidence suggests that vitamin B6 200 mg daily can reduce plasma levels of phenytoin, possibly by increasing metabolism. It is not known whether lower doses have any effect. Advise people taking phenytoin to avoid high doses of vitamin B6.
Levodopa
Vitamin B6 may increase the metabolism of levodopa when taken alone, but not when taken in conjunction with carbidopa.
Vitamin B6 (pyridoxine) enhances the metabolism of levodopa, reducing its clinical effects. However, this interaction does not occur when carbidopa is used concurrently with levodopa (Sinemet). Therefore, it is not likely to be a problem in most people.
D-Glucosamine Sulfate
Warfarin (Coumadin)
Glucosamine might increase the anticoagulant effects of warfarin and increase the risk of bruising and bleeding.
In two individual case reports, glucosamine/chondroitin combinations were associated with a significant increase in international normalized ratio (INR) in patients previously stabilized on warfarin. In one case, the increase in INR occurred only after tripling the dose of a glucosamine/chondroitin supplement from 500 mg/400 mg daily to 1500/1200 mg daily. Additionally, 20 voluntary case reports to the U.S. Food & Drug Administration (FDA) have linked glucosamine plus chondroitin with increased INR, bruising, and bleeding in patients who were also taking warfarin. There have also been 20 additional case reports to the World Health Organization (WHO) that link glucosamine alone to increased INR in patients taking warfarin. The mechanism of this interaction is unclear. Glucosamine is a small component of heparin, but is not thought to have anticoagulant activity; however, animal research suggests that it might have antiplatelet activity.
Topoisomerase Ii Inhibitors
Theoretically glucosamine may induce resistance to topoisomerase II inhibitors.
In vitro research suggests that glucosamine might induce resistance to etoposide (VP16, VePesid) and doxorubicin (Adriamycin) by reducing inhibition of topoisomerase II, an enzyme required for DNA replication in tumor cells. This effect has not been reported in humans.
Acetaminophen (Tylenol, Others)
Acetaminophen might interfere with the activity of glucosamine sulfate by interacting with the sulfate portion.
Anecdotal reports suggest that adding glucosamine to an acetaminophen regimen might decrease pain control in patients with osteoarthritis. Some research suggests that the sulfate portion of glucosamine sulfate might contribute to its effect in osteoarthritis. Since acetaminophen metabolism requires sulfur and reduces serum sulfate concentrations, acetaminophen could theoretically interfere with the action of glucosamine sulfate. Conversely, the administration of sulfate could theoretically decrease the effectiveness of acetaminophen in sulfate-deficient people by increasing its clearance.
Antidiabetes Drugs
Despite initial concerns, it is unlikely that glucosamine will interfere with the effects of antidiabetes drugs.
In vitro and animal research has suggested that glucosamine might increase insulin resistance or decrease insulin production. This has raised concerns that taking glucosamine might worsen diabetes and decrease the effectiveness of diabetes drugs. However, clinical research suggests that glucosamine does not have adverse effects on blood glucose or glycated hemoglobin (HbA1C) in healthy, obese, or type 2 diabetes patients.
Brand information
Manufacturer and brand details for Maxi GS 500, from the product label.
Maxi Health
See all Maxi Health products- Name
- Maxi Health
- City
- Brooklyn
- State
- N.Y.
- Phone Number
- 800-544-6294
- Web Address
- www.maxihealth.com
Maxi GS 500 by Maxi Health: Common Questions
Does Maxi GS 500 by Maxi Health interact with any medications?
How can one product interact with so many drugs?
Where does this information come from?
Is Maxi GS 500 safe to take during pregnancy?
What are the side effects of glucosamine?
Does glucosamine work for joint pain?
What is vitamin B6 used for?
Written and reviewed by the HelloPharmacist editorial staff. Our editorial policy
Not sure if Maxi GS 500 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 Maxi GS 500’s Ingredients
Every ingredient we hold a full HelloPharmacist monograph for — uses, evidence, safety, and the complete interaction list.
Vitamin B6
Interacts with 210 drugsVitamin B6 (pyridoxine) is an essential water-soluble vitamin that your body needs for metabolism, brain function, and making red blood cells. It is best known for helping with pregnancy-rel...
Read the full Vitamin B6 monograph → Herb & supplement monographGlucosamine
Interacts with 170 drugsGlucosamine is a natural compound found in cartilage and joint fluid, and it is one of the most popular supplements for osteoarthritis, especially of the knee. The evidence is mixed, with so...
Read the full Glucosamine monograph →Sources & How We Checked
Maxi GS 500'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 90 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.
Vitamin B6 32 references
- Hansten PD, Horn JR. Drug Interactions Analysis and Management. Vancouver, WA: Applied Therapeutics Inc., 1997 and updates.
- Yates AA, Schlicker SA, Suitor CW. Dietary reference intakes: The new basis for recommendations for calcium and related nutrients, B vitamins, and choline. J Am Diet Assoc 1998;98:699-706. PubMed
- Geerling BJ, Dagnelie PC, Badart-Smook A, et al. Diet as a risk factor for the development of ulcerative colitis. Am J Gastroenterol 2000;95:1008-13. PubMed
- South M. Neonatal seizures after pyridoxine use -- reply. Lancet 1999;354:2083. PubMed
- Food and Nutrition Board, Institute of Medicine. Dietary Reference Intakes for Thiamin, Riboflavin, Niacin, Vitamin B6, Folate, Vitamin B12, Pantothenic Acid, Biotin, and Choline (2000). Washington, DC: National Academy Press, 2000. Available at: http://b
- Baxter P, Aicardi J. Neonatal seizures after pyridoxine use. Lancet 1999;354:2082-3. PubMed
- Bendich A, Cohen M. Vitamin B6 safety issues. Ann N Y Acad Sci 1990;585:321-30.
- Schaumburg H, Kaplan J, Windebank A. Sensory neuropathy from pyridoxine abuse. A new megavitamin syndrome. N Engl J Med 1983;309:445-8. PubMed
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