Glucosamine Sulfate 500 mg Ingredients & Drug Interactions
by Major
What is this page for?
First and foremost: checking Glucosamine Sulfate 500 mg against your medications. The heart of this page is the interaction checker and the full interaction report — how this product’s ingredients may interact with prescription and over-the-counter medicines you may be taking.
Around that, we add a pharmacist’s high-level view of the product as a whole — what’s inside, the evidence for its stated use, how transparent the label is, and what safety data exists — so you can see the full picture in one place. It’s educational information from our licensed clinical databases and the clinical staff at HelloPharmacist — not medical advice — and we don’t sell or endorse products. Our editorial policy
Glucosamine Sulfate 500 mg is a dietary supplement by Major with 1 active ingredient. Its ingredients are commonly taken for osteoarthritis, joint pain and stiffness, cartilage support.Based on those ingredients, 170 medications have a known interaction with it, the most serious rated major. The ingredients most likely to interact are Glucosamine Sulfate 2KCl. Use the checker below to test your specific medication, or read the full HelloPharmacist Interaction Report.
Check Your Meds Against Glucosamine Sulfate 500 mg by Major
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HelloPharmacist Scorecard of Glucosamine Sulfate 500 mg by Major
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: glucosamine sulfate 2KCl, a form of glucosamine—a natural compound found in cartilage that may support joint health. The capsule also contains microcrystalline cellulose, gelatin, and magnesium stearate as inactive ingredients (binders and fillers).
Does it work?
Strong evidence
Glucosamine sulfate is likely effective for osteoarthritis, meaning research supports its use for joint pain and stiffness from this condition. For other uses—aging skin, back pain, colorectal cancer prevention, and liver health—the evidence we hold is insufficient to rate it, so we can't say whether it works for those purposes.
How safe is it?
Well-documented data
Taken by mouth, glucosamine is generally well tolerated. The most common side effects are mild digestive complaints: bloating, constipation, cramps, diarrhea, heartburn, and nausea.
Rare serious reactions have been reported, and some people may have allergic reactions—in one review, about 72% of adverse event reports involved sensitivity reactions ranging from mild itching and hives to severe reactions like trouble breathing and, in 1.5% of cases, anaphylaxis. A few cases of asthma flare-ups have also been tied to glucosamine products.
The safety data advises against use during pregnancy and while breastfeeding, as there isn't enough information to know it's safe in those situations. Talk with your doctor or pharmacist about your own circumstances before taking it if you're pregnant, nursing, or planning to be.
Meds to double-check
Major interaction found
Before you start, double-check with your doctor or pharmacist if you take warfarin or other blood thinners, chemotherapy drugs (especially topoisomerase II inhibitors like etoposide or doxorubicin), blood sugar medications, or acetaminophen. The warfarin interaction is the most serious.
The bottom line
Scorecard at a glanceFully disclosed formula with clinical evidence supporting its stated purpose. Major medication interactions have been identified, and safety information is well characterized.
This product may help if you have osteoarthritis. If you take warfarin, any chemotherapy drugs, diabetes medication, or acetaminophen regularly, check with your doctor or pharmacist before starting—glucosamine can interact with all of these.
It's generally well tolerated overall, but watch for digestive upset and be aware of the rare risk of allergic reaction.
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 May 28, 2019.
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 Glucosamine Sulfate 500 mg, straight from the product label.
| Brand | Major |
|---|---|
| Barcode (UPC) | 309045293522 |
| Net contents | 60 Capsule(s) |
| Market status | On market |
| Date entered into DSLD | May 28, 2019 |
| DSLD ID | 202177 |
| Product type | Non-nutrient/non-botanical |
| Supplement form | Capsule |
| Dietary claims / uses | All Other, Structure/Function |
| Intended target group(s) | Adult (18 - 50 Years), Seniors/Mature (>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 Glucosamine Sulfate 500 mg by Major, sourced from the NIH Dietary Supplement Label Database.
Supplement Facts
| Ingredient | Amount | % DV |
|---|---|---|
| Glucosamine Sulfate 2KCl | 500 mg | -- |
Other ingredients: Microcrystalline Cellulose, Gelatin, Magnesium 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.
General
Re-Order No. 700742 M-147 Rev. 10/16 MP 941-02
General Statements
Potency guaranteed Helps build cartilage and contributes to joint health
Made in Canada
FDA Statement of Identity
Dietary Supplement
Formula
Contains: Shellfish (shrimp, crab, lobster, crayfish) ingredients.
As a key ingredient in cartilage, Glucosamine plays an important role in good joint health. Studies indicate that Glucosamine provides the building blocks for constructing cartilage. Our Glucosamine Sulfate 500 mg is perfect for senior citizens, weekend athletes, or anyone desiring extra nutritional support for cartilage and joints.
Precautions
Contains: Shellfish (shrimp, crab, lobster, crayfish) ingredients.
Keep out of the reach of children.
Warning: If you are pregnant, nursing, taking any medications or planning any medical procedure, consult your doctor before use.
Discontinue use and consult your doctor if any adverse reactions occur.
Not intended for use by persons under the age of 18.
Do not use if imprinted seal under cap is broken or missing.
Suggested/Recommended/Usage/Directions
Directions: Adults, one (1) capsule three times daily, preferably with a meal.
Storage
Store in a cool, dry place. Do not expose to excessive heat or moisture.
FDA Disclaimer Statement
These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure or prevent any disease.
Formulation
Free of: Yeast, wheat, gluten, milk or milk derivatives, lactose, sugar, preservatives, soy, artificial colors, artificial flavors, sodium (less than 5 mg per serving).
Is this label outdated? Report a formula or label change and our pharmacy team will review it.
Glucosamine Sulfate 500 mg by Major 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 Glucosamine Sulfate 500 mg by Major
This is the 1 active ingredient this product is made of. Select it to open its full monograph.
Serving size1 Capsule(s) Dosage formCapsule Amounts shown are per serving.
Glucosamine Sulfate 2KCl
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...
Glucosamine Sulfate 2KCl monograph & interactionsOther (inactive) ingredients: Microcrystalline Cellulose, Gelatin, Magnesium Stearate. These complete the product’s ingredient list but are not active constituents.
Glucosamine Sulfate 500 mg by Major Drug Interactions
HelloPharmacist Interaction Report
Glucosamine Sulfate 500 mg by Major does interact with several medication types.
The most serious concern is with warfarin (Coumadin), a blood thinner (anticoagulant). Glucosamine might boost warfarin's blood-thinning effect and raise your bleeding and bruising risk—case reports show it can significantly increase INR (a measure of how thin your blood is) in people who were stable on the drug.
Read the full breakdown — every affected drug type, severity by severity
You'll also want to be careful if you're taking chemotherapy drugs called topoisomerase II inhibitors, such as etoposide or doxorubicin. Lab research suggests glucosamine might make these drugs less effective, though this hasn't been seen in actual patients yet.
Glucosamine carries Minor-level interactions with blood sugar medications (antidiabetes drugs) and acetaminophen (Tylenol). Early concerns that it might worsen diabetes or interfere with blood sugar control haven't held up in real-world use, but some people report it may reduce pain relief when combined with acetaminophen.
Altogether, these interactions span 170 individual medications.
Check your own medications below · Editorial policy · How we use AI
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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 Glucosamine Sulfate 500 mg interact with 170 drugs. Click any drug to see the details.
1 of the 1 ingredient in Glucosamine Sulfate 500 mg interact with drugs. Each result below shows which ingredient is responsible. Glucosamine Sulfate 2KCl
WarfarinWarfarin
How Warfarin interacts with Glucosamine Sulfate 500 mg — through 1 ingredient. Tap an ingredient for the detail:
Glucosamine Sulfate 2kclWarfarin (coumadin) Major
Interaction Summary
Glucosamine might increase the anticoagulant effects of warfarin and increase the risk of bruising and bleeding.
Read the full Glucosamine Sulfate 2kcl + Warfarin interactionWarfarin SodiumCoumadin, Panwarfin, Sofarin
How Warfarin Sodium interacts with Glucosamine Sulfate 500 mg — through 1 ingredient. Tap an ingredient for the detail:
Glucosamine Sulfate 2kclWarfarin (coumadin) Major
Interaction Summary
Glucosamine might increase the anticoagulant effects of warfarin and increase the risk of bruising and bleeding.
Read the full Glucosamine Sulfate 2kcl + Warfarin Sodium interactionDaunorubicin CitrateDaunoXome
How Daunorubicin Citrate interacts with Glucosamine Sulfate 500 mg — through 1 ingredient. Tap an ingredient for the detail:
Glucosamine Sulfate 2kclTopoisomerase Ii Inhibitors Moderate
Interaction Summary
Theoretically glucosamine may induce resistance to topoisomerase II inhibitors.
Read the full Glucosamine Sulfate 2kcl + Daunorubicin Citrate interactionDaunorubicin HydrochlorideCerubidine
How Daunorubicin Hydrochloride interacts with Glucosamine Sulfate 500 mg — through 1 ingredient. Tap an ingredient for the detail:
Glucosamine Sulfate 2kclTopoisomerase Ii Inhibitors Moderate
Interaction Summary
Theoretically glucosamine may induce resistance to topoisomerase II inhibitors.
Read the full Glucosamine Sulfate 2kcl + Daunorubicin Hydrochloride interactionDaunorubicin, CytarabineVyxeos
How Daunorubicin, Cytarabine interacts with Glucosamine Sulfate 500 mg — through 1 ingredient. Tap an ingredient for the detail:
Glucosamine Sulfate 2kclTopoisomerase Ii Inhibitors Moderate
Interaction Summary
Theoretically glucosamine may induce resistance to topoisomerase II inhibitors.
Read the full Glucosamine Sulfate 2kcl + Daunorubicin, Cytarabine interactionDoxorubicinAdriamycin, Caelyx, Doxil, Myocet, Rubex
How Doxorubicin interacts with Glucosamine Sulfate 500 mg — through 1 ingredient. Tap an ingredient for the detail:
Glucosamine Sulfate 2kclTopoisomerase Ii Inhibitors Moderate
Interaction Summary
Theoretically glucosamine may induce resistance to topoisomerase II inhibitors.
Read the full Glucosamine Sulfate 2kcl + Doxorubicin interactionEpirubicinEllence
How Epirubicin interacts with Glucosamine Sulfate 500 mg — through 1 ingredient. Tap an ingredient for the detail:
Glucosamine Sulfate 2kclTopoisomerase Ii Inhibitors Moderate
Interaction Summary
Theoretically glucosamine may induce resistance to topoisomerase II inhibitors.
Read the full Glucosamine Sulfate 2kcl + Epirubicin interactionEtoposideEtopophos, VePesid, VP16
How Etoposide interacts with Glucosamine Sulfate 500 mg — through 1 ingredient. Tap an ingredient for the detail:
Glucosamine Sulfate 2kclTopoisomerase Ii Inhibitors Moderate
Interaction Summary
Theoretically glucosamine may induce resistance to topoisomerase II inhibitors.
Read the full Glucosamine Sulfate 2kcl + Etoposide interactionIdarubicinIdamycin
How Idarubicin interacts with Glucosamine Sulfate 500 mg — through 1 ingredient. Tap an ingredient for the detail:
Glucosamine Sulfate 2kclTopoisomerase Ii Inhibitors Moderate
Interaction Summary
Theoretically glucosamine may induce resistance to topoisomerase II inhibitors.
Read the full Glucosamine Sulfate 2kcl + Idarubicin interactionIrinotecanCamptosar, Onivyde
How Irinotecan interacts with Glucosamine Sulfate 500 mg — through 1 ingredient. Tap an ingredient for the detail:
Glucosamine Sulfate 2kclTopoisomerase Ii Inhibitors Moderate
Interaction Summary
Theoretically glucosamine may induce resistance to topoisomerase II inhibitors.
Read the full Glucosamine Sulfate 2kcl + Irinotecan interactionIrinotecan Hydrochloride
How Irinotecan Hydrochloride interacts with Glucosamine Sulfate 500 mg — through 1 ingredient. Tap an ingredient for the detail:
Glucosamine Sulfate 2kclTopoisomerase Ii Inhibitors Moderate
Interaction Summary
Theoretically glucosamine may induce resistance to topoisomerase II inhibitors.
Read the full Glucosamine Sulfate 2kcl + Irinotecan Hydrochloride interactionMitoxantroneNovantrone
How Mitoxantrone interacts with Glucosamine Sulfate 500 mg — through 1 ingredient. Tap an ingredient for the detail:
Glucosamine Sulfate 2kclTopoisomerase Ii Inhibitors Moderate
Interaction Summary
Theoretically glucosamine may induce resistance to topoisomerase II inhibitors.
Read the full Glucosamine Sulfate 2kcl + Mitoxantrone interactionTeniposideVumon
How Teniposide interacts with Glucosamine Sulfate 500 mg — through 1 ingredient. Tap an ingredient for the detail:
Glucosamine Sulfate 2kclTopoisomerase Ii Inhibitors Moderate
Interaction Summary
Theoretically glucosamine may induce resistance to topoisomerase II inhibitors.
Read the full Glucosamine Sulfate 2kcl + Teniposide interactionTopotecanHycamtin
How Topotecan interacts with Glucosamine Sulfate 500 mg — through 1 ingredient. Tap an ingredient for the detail:
Glucosamine Sulfate 2kclTopoisomerase Ii Inhibitors Moderate
Interaction Summary
Theoretically glucosamine may induce resistance to topoisomerase II inhibitors.
Read the full Glucosamine Sulfate 2kcl + Topotecan interactionValrubicinValstar
How Valrubicin interacts with Glucosamine Sulfate 500 mg — through 1 ingredient. Tap an ingredient for the detail:
Glucosamine Sulfate 2kclTopoisomerase Ii Inhibitors Moderate
Interaction Summary
Theoretically glucosamine may induce resistance to topoisomerase II inhibitors.
Read the full Glucosamine Sulfate 2kcl + Valrubicin interactionAcarboseGlucobay, Prandase, Precose
How Acarbose interacts with Glucosamine Sulfate 500 mg — through 1 ingredient. Tap an ingredient for the detail:
Glucosamine Sulfate 2kclAntidiabetes Drugs Minor
Interaction Summary
Despite initial concerns, it is unlikely that glucosamine will interfere with the effects of antidiabetes drugs.
Read the full Glucosamine Sulfate 2kcl + Acarbose interactionAcetaminophenChildren's Tylenol, Children's Tylenol Meltaways, Tylenol, Tylenol Ex Strength
How Acetaminophen interacts with Glucosamine Sulfate 500 mg — through 1 ingredient. Tap an ingredient for the detail:
Glucosamine Sulfate 2kclAcetaminophen (tylenol, Others) Minor
Interaction Summary
Acetaminophen might interfere with the activity of glucosamine sulfate by interacting with the sulfate portion.
Read the full Glucosamine Sulfate 2kcl + Acetaminophen interactionAcetaminophen, AspirinGemnisyn
How Acetaminophen, Aspirin interacts with Glucosamine Sulfate 500 mg — through 1 ingredient. Tap an ingredient for the detail:
Glucosamine Sulfate 2kclAcetaminophen (tylenol, Others) Minor
Interaction Summary
Acetaminophen might interfere with the activity of glucosamine sulfate by interacting with the sulfate portion.
Read the full Glucosamine Sulfate 2kcl + Acetaminophen, Aspirin interactionAcetaminophen, Aspirin, CaffeineExcedrin, Excedrin Extra Strength, Excedrin Migraine
How Acetaminophen, Aspirin, Caffeine interacts with Glucosamine Sulfate 500 mg — through 1 ingredient. Tap an ingredient for the detail:
Glucosamine Sulfate 2kclAcetaminophen (tylenol, Others) Minor
Interaction Summary
Acetaminophen might interfere with the activity of glucosamine sulfate by interacting with the sulfate portion.
Read the full Glucosamine Sulfate 2kcl + Acetaminophen, Aspirin, Caffeine interactionAcetaminophen, Brompheniramine, PhenylpropanolamineDimetapp Cold and Flu
How Acetaminophen, Brompheniramine, Phenylpropanolamine interacts with Glucosamine Sulfate 500 mg — through 1 ingredient. Tap an ingredient for the detail:
Glucosamine Sulfate 2kclAcetaminophen (tylenol, Others) Minor
Interaction Summary
Acetaminophen might interfere with the activity of glucosamine sulfate by interacting with the sulfate portion.
Read the full Glucosamine Sulfate 2kcl + Acetaminophen, Brompheniramine, Phenylpropanolamine interactionAcetaminophen, ButalbitalAxocet, Bancap, Bucet, Butex Forte, Esgic CF, Orbivan CF +5 more
How Acetaminophen, Butalbital interacts with Glucosamine Sulfate 500 mg — through 1 ingredient. Tap an ingredient for the detail:
Glucosamine Sulfate 2kclAcetaminophen (tylenol, Others) Minor
Interaction Summary
Acetaminophen might interfere with the activity of glucosamine sulfate by interacting with the sulfate portion.
Read the full Glucosamine Sulfate 2kcl + Acetaminophen, Butalbital interactionAcetaminophen, Butalbital, CaffeineEsgic, Esgic Plus, Fiogesic, Fioricet, Repan, Tecnal +1 more
How Acetaminophen, Butalbital, Caffeine interacts with Glucosamine Sulfate 500 mg — through 1 ingredient. Tap an ingredient for the detail:
Glucosamine Sulfate 2kclAcetaminophen (tylenol, Others) Minor
Interaction Summary
Acetaminophen might interfere with the activity of glucosamine sulfate by interacting with the sulfate portion.
Read the full Glucosamine Sulfate 2kcl + Acetaminophen, Butalbital, Caffeine interactionAcetaminophen, Butalbital, Caffeine, CodeineEsgic with Codeine, Fioricet w/ Codeine
How Acetaminophen, Butalbital, Caffeine, Codeine interacts with Glucosamine Sulfate 500 mg — through 1 ingredient. Tap an ingredient for the detail:
Glucosamine Sulfate 2kclAcetaminophen (tylenol, Others) Minor
Interaction Summary
Acetaminophen might interfere with the activity of glucosamine sulfate by interacting with the sulfate portion.
Read the full Glucosamine Sulfate 2kcl + Acetaminophen, Butalbital, Caffeine, Codeine interactionAcetaminophen, Butalbital, CodeineBancap w/ Codeine
How Acetaminophen, Butalbital, Codeine interacts with Glucosamine Sulfate 500 mg — through 1 ingredient. Tap an ingredient for the detail:
Glucosamine Sulfate 2kclAcetaminophen (tylenol, Others) Minor
Interaction Summary
Acetaminophen might interfere with the activity of glucosamine sulfate by interacting with the sulfate portion.
Read the full Glucosamine Sulfate 2kcl + Acetaminophen, Butalbital, Codeine interactionAcetaminophen, Butalbital, Codeine PhosphatePhrenilin #3
How Acetaminophen, Butalbital, Codeine Phosphate interacts with Glucosamine Sulfate 500 mg — through 1 ingredient. Tap an ingredient for the detail:
Glucosamine Sulfate 2kclAcetaminophen (tylenol, Others) Minor
Interaction Summary
Acetaminophen might interfere with the activity of glucosamine sulfate by interacting with the sulfate portion.
Read the full Glucosamine Sulfate 2kcl + Acetaminophen, Butalbital, Codeine Phosphate interactionAcetaminophen, Caffeine, Chlorpheniramine, Hydrocodone, PhenylephrineHycomine Compound
How Acetaminophen, Caffeine, Chlorpheniramine, Hydrocodone, Phenylephrine interacts with Glucosamine Sulfate 500 mg — through 1 ingredient. Tap an ingredient for the detail:
Glucosamine Sulfate 2kclAcetaminophen (tylenol, Others) Minor
Interaction Summary
Acetaminophen might interfere with the activity of glucosamine sulfate by interacting with the sulfate portion.
Read the full Glucosamine Sulfate 2kcl + 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 Glucosamine Sulfate 500 mg — through 1 ingredient. Tap an ingredient for the detail:
Glucosamine Sulfate 2kclAcetaminophen (tylenol, Others) Minor
Interaction Summary
Acetaminophen might interfere with the activity of glucosamine sulfate by interacting with the sulfate portion.
Read the full Glucosamine Sulfate 2kcl + Acetaminophen, Caffeine, Codeine interactionAcetaminophen, Caffeine, Codeine, SalicylamideCodalan No.1, Codalan No.2, Codalan No.3
How Acetaminophen, Caffeine, Codeine, Salicylamide interacts with Glucosamine Sulfate 500 mg — through 1 ingredient. Tap an ingredient for the detail:
Glucosamine Sulfate 2kclAcetaminophen (tylenol, Others) Minor
Interaction Summary
Acetaminophen might interfere with the activity of glucosamine sulfate by interacting with the sulfate portion.
Read the full Glucosamine Sulfate 2kcl + Acetaminophen, Caffeine, Codeine, Salicylamide interactionAcetaminophen, Caffeine, DihydrocodeineDHC Plus, Panlor DC, Panlor SS
How Acetaminophen, Caffeine, Dihydrocodeine interacts with Glucosamine Sulfate 500 mg — through 1 ingredient. Tap an ingredient for the detail:
Glucosamine Sulfate 2kclAcetaminophen (tylenol, Others) Minor
Interaction Summary
Acetaminophen might interfere with the activity of glucosamine sulfate by interacting with the sulfate portion.
Read the full Glucosamine Sulfate 2kcl + Acetaminophen, Caffeine, Dihydrocodeine interactionAcetaminophen, Caffeine, IsomethepteneMigralam
How Acetaminophen, Caffeine, Isometheptene interacts with Glucosamine Sulfate 500 mg — through 1 ingredient. Tap an ingredient for the detail:
Glucosamine Sulfate 2kclAcetaminophen (tylenol, Others) Minor
Interaction Summary
Acetaminophen might interfere with the activity of glucosamine sulfate by interacting with the sulfate portion.
Read the full Glucosamine Sulfate 2kcl + Acetaminophen, Caffeine, Isometheptene interactionEach ingredient & the kinds of drugs it affects
For each ingredient in Glucosamine Sulfate 500 mg with known interactions, here are the types of medications it can affect. Open any type for the detail — or search your exact drug in the checker above.
Glucosamine Sulfate 2KCl
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 Glucosamine Sulfate 500 mg, from the product label.
Major
See all Major products- Name
- Major Pharmaceuticals
- Street Address
- 17177 N Laurel Park Drive, Suite 233
- City
- Livonia
- State
- MI
- ZipCode
- 48152
- Phone Number
- (800) 616-2471
Glucosamine Sulfate 500 mg by Major: Common Questions
Does Glucosamine Sulfate 500 mg by Major interact with any medications?
How can one product interact with so many drugs?
Where does this information come from?
Does glucosamine actually work for joint pain?
What side effects should I watch for?
Is it safe to take if I'm pregnant or breastfeeding?
Can I take this with acetaminophen?
What's the difference between glucosamine sulfate and other forms?
Written and reviewed by the HelloPharmacist editorial staff. Our editorial policy
Not sure if Glucosamine Sulfate 500 mg 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 Glucosamine Sulfate 500 mg’s Ingredients
Every ingredient we hold a full HelloPharmacist monograph for — uses, evidence, safety, and the complete interaction list.
Sources & How We Checked
Glucosamine Sulfate 500 mg's label data comes from the NIH Dietary Supplement Label Database; the ingredient interaction data is from the Natural Medicines database, reviewed by our pharmacists.
- 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 58 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.
Glucosamine 58 references
- Adams ME. Hype about glucosamine. Lancet 1999;354:353-4. PubMed
- Balkan B, Dunning BE. Glucosamine inhibits glucokinase in vitro and produces a glucose-specific impairment of in vivo insulin secretion in rats. Diabetes 1994;43:1173-9. PubMed
- Giaccari A, Morviducci L, Zorretta D, et al. In vivo effects of glucosamine on insulin secretion and insulin sensitivity in the rat: possible relevance to the maladaptive responses to chronic hyperglycaemia. Diabetologia 1995;38:518-24. PubMed
- Holmang A, Nilsson C, Niklasson M, et al. Induction of insulin resistance by glucosamine reduces blood flow but not interstitial levels of either glucose or insulin. Diabetes 1999;48:106-11. PubMed
- Houpt JB, McMillan R, Wein C, Paget-Dellio SD. Effect of glucosamine hydrochloride in the treatment of pain of osteoarthritis of the knee. J Rheumatol 1999;26:2423-30.
- Barclay TS, Tsourounis C, McCart GM. Glucosamine. Ann Pharmacother 1998;32:574-9.
- Shankar RR, Zhu JS, Baron AD. Glucosamine infusion in rats mimics the beta-cell dysfunction of non-insulin-dependent diabetes mellitus. Metabolism 1998;47:573-7.
- Almada A, Harvey P, Platt K. Effects of chronic oral glucosamine sulfate on fasting insulin resistance index (FIRI) in non-diabetic individuals. FASEB J 2000;14:A750.
- Reginster JY, Deroisy R, Rovati LC, et al. Long-term effects of glucosamine sulfate on osteoarthritis progression: a randomised, placebo-controlled trial. Lancet 2001;357:251-6.
- Does glucosamine increase serum lipid levels and blood pressure? Pharmacist's Letter/Prescriber's Letter 2001;17(11):171115.
- Food and Nutrition Board, Institute of Medicine. Dietary Reference Intakes for Vitamin A, Vitamin K, Arsenic, Boron, Chromium, Copper, Iodine, Iron, Manganese, Molybdenum, Nickel, Silicon, Vanadium, and Zinc. Washington, DC: National Academy Press, 2002.
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