Major interaction on record — check this product against your medications before combining. Check your meds →
Dietary supplement

Glucosamine & Chondroitin + MSM Ingredients & Drug Interactions

by Emerald Labs

Glucosamine & Chondroitin + MSM label
See full label image
Capsule Category: Non-nutrient/non-botanical
Most serious interaction: Major
Clinical methodology reviewed by · Updated Sep 9, 2026 · Label data from the NIH DSLD
What is this page for?

First and foremost: checking Glucosamine & Chondroitin + MSM against your medications. The heart of this page is the interaction checker and the full interaction report — how this product’s ingredients may interact with prescription and over-the-counter medicines you may be taking.

Around that, we add a pharmacist’s high-level view of the product as a whole — what’s inside, the evidence for its stated use, how transparent the label is, and what safety data exists — so you can see the full picture in one place. It’s educational information from our licensed clinical databases and the clinical staff at HelloPharmacist — not medical advice — and we don’t sell or endorse products. Our editorial policy

The interaction bottom line Most serious interaction: Major

Glucosamine & Chondroitin + MSM is a dietary supplement by Emerald Labs with 3 active ingredients. Its ingredients are commonly taken for osteoarthritis joint pain, joint stiffness, cartilage support.Based on those ingredients, 232 medications have a known interaction with it, the most serious rated major. The ingredients most likely to interact are Glucosamine Sulfate Potassium Chloride, Chondroitin Sulfate. Use the checker below to test your specific medication, or read the full HelloPharmacist Interaction Report.

Jump to a section

Check Your Meds Against Glucosamine & Chondroitin + MSM by Emerald Labs

Ask about any prescription or over-the-counter medication and we check it for interactions with Glucosamine & Chondroitin + MSM by Emerald Labs — and tell you which ingredient is responsible.

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HelloPharmacist Scorecard of Glucosamine & Chondroitin + MSM by Emerald Labs

Our pharmacy team’s full take, with four database checks built into the cards below — a summary of what is known, not a grade of the product itself.

From our pharmacy team — supplement deep dive

Generated from HelloPharmacist’s pharmacist-curated databases and editorial rules · Last generated Jul 30, 2026

What’s inside

Full disclosure
Ingredient Transparency · database check
Full

Every active ingredient lists its own amount on the label.

Why this rating?
  • The label discloses an exact amount for 4 of its 4 active ingredients.
  • “Glucosamine Sulfate Potassium Chloride” is listed as a grouped ingredient — the label gives one combined amount (1,350 mg) without saying how much of each component you get.

This product has 4 active ingredients. Potassium chloride is a mineral salt that helps maintain healthy nerve and heart function.

Glucosamine sulfate and chondroitin sulfate are compounds extracted from cartilage, used to support joint structure and mobility. Methylsulfonylmethane (MSM) is an organic sulfur compound believed to support joint and connective tissue health.

The capsules also contain gelatin as an inactive ingredient.

Does it work?

Strong evidence
Evidence for Intended Use · database check
By FDA rules, dietary supplements can’t claim to treat, cure, or prevent disease — so labels speak in careful marketing language. We discern each product’s intended use from its name, label claims, and label statements, then grade the clinical evidence for that use. How these ratings are computed
Strong

Clinical evidence supports at least one of this product's ingredients for its stated purpose.

Why this rating?
  • The label markets this product for: Joint pain and cartilage support.
  • We looked for evidence on: Osteoarthritis, Joint pain, Knee pain, Back pain, Aromatase inhibitor-induced arthralgia, Cartilage degradation — and 2 related terms.
  • The strongest evidence on file: Glucosamine is rated "Likely Effective" for Osteoarthritis (Natural Medicines).
  • Also on file: Chondroitin Sulfate is rated "Possibly Effective" for Osteoarthritis.
  • Also on file: Chondroitin Sulfate is rated "Insufficient Reliable Evidence To Rate" for Aromatase inhibitor-induced arthralgia.

Glucosamine sulfate is likely effective for osteoarthritis, meaning research supports its use for joint pain and function in this condition. Chondroitin sulfate is possibly effective for both cataracts and osteoarthritis—the evidence suggests a benefit but isn't conclusive.

For other conditions like back pain, aging skin, osteoporosis, and liver health, the evidence we hold is insufficient to say whether either ingredient works. We have no effectiveness data on file for potassium chloride or MSM for any specific condition.

The evidence, ingredient by ingredient Chondroitin Sulfate Glucosamine Potassium

How safe is it?

Well-documented data
Safety Information · database check
Well characterized

Adverse-effect, pregnancy, and general safety data are on file for most of these ingredients.

Why this rating?
  • We hold adverse-effect (side-effect) data for 3 of the 3 matched ingredients.
  • Pregnancy & breastfeeding safety ratings cover 3 of 3.
  • General safety write-ups exist for 3 of 3.
  • Remember: this measures how much safety information exists. Thin data is not the same as being safe.

Glucosamine and chondroitin sulfate are generally well tolerated in the short term, though quality and actual benefit vary between products. Common side effects from oral use include bloating, constipation, diarrhea, heartburn, nausea, and abdominal pain.

Rare serious effects include allergic reactions (from mild rash to severe reactions like anaphylaxis in a small number of users) and asthma exacerbation. Potassium chloride is also generally well tolerated when taken orally, with similar digestive side effects, but can cause serious heart rhythm problems and mental confusion if it builds up to dangerously high levels, especially in people with kidney disease.

During pregnancy, dietary potassium is fine, but potassium supplements should only be used under medical guidance. Glucosamine and chondroitin lack enough safety data—the facts advise against both during pregnancy and breastfeeding.

There is not enough data on file regarding methylsulfonylmethane and pregnancy or breastfeeding.

Side effects, ingredient by ingredient Chondroitin Sulfate Glucosamine Potassium

Meds to double-check

Major interaction found
Known Interaction Concern · database check
Major identified

At least one ingredient has a documented Major-severity interaction. Check your medications for a personalized result.

Why this rating?
  • 3 of the 3 matched ingredients can interact with medications — Chondroitin Sulfate, Glucosamine, Potassium.
  • The most serious interaction on file is rated Major.
  • Some involve high-stakes drug classes: anticoagulant / antiplatelet drugs; diabetes medications.
  • For scale: 232 individual medications appear in the full list. A big number alone doesn't make a product dangerous — what matters is whether YOUR medication is on it, so run yours through the interaction checker on this page.

If you take warfarin or another blood thinner, do not use this product without checking with your doctor—glucosamine can increase bleeding risk. If you're on a blood pressure medication, particularly an ACE inhibitor, ARB, or potassium-sparing diuretic, confirm with your pharmacist that the potassium level here is safe for you.

If you take diabetes medication, a chemotherapy drug (especially a topoisomerase II inhibitor), or rely on acetaminophen for pain, mention this product to your healthcare provider before starting.

Check your own medication Run your meds through the checker above

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 be worth considering if you have osteoarthritis and want to explore glucosamine, but you'll need to clear it with your doctor or pharmacist first, especially if you take a blood thinner, blood pressure medication, or have kidney disease. Potassium supplements carry real risks if your kidneys aren't working well or if you're on certain blood pressure drugs, so this isn't something to start on your own.

Talk it over with your own healthcare provider before taking it.

Educational only — not medical advice; always confirm with your pharmacist. Our editorial policy · How we use AI

Assessment coverage: 3 of 4 active ingredients matched to our full ingredient reviews (monographs). Based on the product label dated Feb 22, 2024.

This Scorecard evaluates available label information, ingredient evidence, and known medication-safety considerations. It does not independently verify product identity, purity, potency, contamination, or manufacturing quality. How these ratings are computed

At a glance

General information

Key facts about Glucosamine & Chondroitin + MSM, straight from the product label.

Brand Emerald Labs
Barcode (UPC) 743650101191
Net contents 120 Capsule(s)
Market status On market
Date entered into DSLD Feb 22, 2024
DSLD ID 302604
Product type Non-nutrient/non-botanical
Supplement form Capsule
Dietary claims / uses All Other, Structure/Function
Intended target group(s) Adult (18 - 50 Years), Gluten Free, Dairy Free
From the label
Everything in this section is reproduced from the manufacturer’s own product label — it’s the label speaking, not HelloPharmacist. We show it so you can see exactly what the maker states; we don’t verify or endorse those statements.

Supplement Facts

The label details for Glucosamine & Chondroitin + MSM by Emerald Labs, sourced from the NIH Dietary Supplement Label Database.

Supplement Facts

Daily Value (DV) Target Group(s):
Adults and children 4 or more years of age
Minimum serving Sizes:
4 Capsule(s)
Maximum serving Sizes:
4 Capsule(s)
Servings per container
30
UPC/BARCODE
743650101191
IngredientAmount% DV
Potassium Chloride350 mg--
Methylsulfonylmethane1000 mg--
Chondroitin Sulfate1000 mg--
Glucosamine Sulfate1000 mg--
Glucosamine Sulfate Potassium Chloride1350 mg--

Other ingredients: Gelatin

Tap any ingredient to jump to its full detail below.

Label statements
These statements are the manufacturer’s wording, reproduced from the product label — the label is saying it, not HelloPharmacist. We don’t verify or endorse them.
Formula

Glucosamine Chondroitin MSM offers clinical amounts of Chondroitin sulfate and methylsulfonylmethane (MSM), a highly bioavailable source of organic sulfur.

Plant-sourced MSM

General Statements

Emerald Labs is family owned and operated since our beginnings in 1996.

Doctor-formulated

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

Sodium-free

Made with Non-GMO ingredients No magnesium stearate Gluten-free

This product is free of: Corn, milk, salt, yeast, soy, added sugar, wheat, artificial flavors and preservatives.

This combination may help to support: Cartilage glycosaminoglycan (GAG) production Collagen production for healthy joints Exercise recovery

We are committed to providing your family with additive-free formulas and superior nutrient forms in therapeutic amounts.

FDA Statement of Identity

Dietary Supplement

Suggested/Recommended/Usage/Directions

Suggested use: Adults, take four (4) capsules daily with food or as directed by a health care practitioner.

Precautions

Keep out of reach of children.

Do not use if safety seal on cap or printed inner seal is missing or broken.

Consult a physician if pregnant, lactating, currently on prescription medication or diagnosed with a medical condition.

Shellfish allergy is usually not a problem, but check with your doctor before taking glucosamine. Product is manufactured in a facility that processes milk, egg, soy, tree nuts, fish and shellfish.

Storage

Store in a cool, dry place.

Brand IP Statement(s)

Copyright 2021 Emerald Labs, Inc.

Emerald Labs The Additive-Free Company

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

See for yourself

Glucosamine & Chondroitin + MSM by Emerald Labs label

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

Glucosamine & Chondroitin + MSM label

Label images are published by the NIH Dietary Supplement Label Database for the version of this product on file. Always read your actual product label.

View the full label (PDF)
What’s inside

The Ingredients in Glucosamine & Chondroitin + MSM by Emerald Labs

These are the 3 active ingredients this product is made of. Select any to open its full monograph.

Serving size4 Capsule(s) Dosage formCapsule Servings per container30 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.

Methylsulfonylmethane

1000 mg per serving

Chondroitin Sulfate

Interacts with
2 drugs
1000 mg per serving

Chondroitin sulfate is a naturally occurring building block of cartilage that is widely taken, often with glucosamine, for osteoarthritis joint pain....

Chondroitin Sulfate monograph & interactions

Glucosamine Sulfate Potassium Chloride

Interacts with
170 drugs
1350 mg per serving

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 Potassium Chloride monograph & interactions

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

Interaction report

Glucosamine & Chondroitin + MSM by Emerald Labs Drug Interactions

Want to check YOUR meds against Glucosamine & Chondroitin + MSM?

Ask about interactions with your drugs in plain English — “Can I take it with lisinopril?” — and we find you the answer in seconds, ingredient by ingredient.

 Go to the checker
232Drugs
2 Major 75 Moderate 155 Minor

Ingredients driving the most interactions

Glucosamine Sulfate Potassium Chloride 170
Chondroitin Sulfate 2

Individual Drug Interactions

The ingredients in Glucosamine & Chondroitin + MSM interact with 232 drugs. Click any drug to see the details.

2 of the 3 ingredients in Glucosamine & Chondroitin + MSM interact with drugs. Each result below shows which ingredient is responsible. Glucosamine Sulfate Potassium Chloride Chondroitin Sulfate

Each ingredient & the kinds of drugs it affects

For each ingredient in Glucosamine & Chondroitin + MSM 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.

Glucosamine Sulfate Potassium Chloride4 drug types · 170 drugs

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.

Likelihood Probable Evidence D
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.

Likelihood Possible Evidence D
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.

Likelihood Possible Evidence B
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.

Likelihood Unlikely Evidence B
Glucosamine Sulfate Potassium Chloride full monograph & interactions

Chondroitin Sulfate1 drug type · 2 drugs

Warfarin (Coumadin)

Taking chondroitin in combination with glucosamine might increase the anticoagulant effects of warfarin. However, the effect of chondroitin alone is unclear.
There have been multiple reports of increased international normalized ratio (INR) in patients taking warfarin with glucosamine, with or without chondroitin. The lack of reports with chondroitin alone seem to suggest that the interactions occurring in these reports may have been due to glucosamine. In two individual case reports, glucosamine/chondroitin combinations were associated with a significant increase in INR in patients previously stabilized on warfarin. Additionally, 20 voluntary case reports to the US 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, without chondroitin, to increased INR in patients taking warfarin.

Likelihood Unlikely Evidence D
Chondroitin Sulfate full monograph & interactions
The maker

Brand information

Manufacturer and brand details for Glucosamine & Chondroitin + MSM, from the product label.

Emerald Labs

See all Emerald Labs products
Name
Emerald Labs
Street Address
20600 Belshaw Ave.
City
Carson
State
CA
ZipCode
90746
Phone Number
800-436-4366
Web Address
www.emeraldlabs.com
Pharmacist Counseling Corner

Glucosamine & Chondroitin + MSM by Emerald Labs: Common Questions

Does Glucosamine & Chondroitin + MSM by Emerald Labs interact with any medications?
Yes. Based on its ingredients, Glucosamine & Chondroitin + MSM has a known interaction with 232 medications, including 2 rated major. Use the checker to see how it interacts with a specific drug.
How can one product interact with so many drugs?
Glucosamine & Chondroitin + MSM contains 3 active ingredients, and an interaction can come from any of them. We check every ingredient, combine the results into one list per medication, and show which ingredient and mechanism is responsible.
Where does this information come from?
The product label data comes from the NIH Dietary Supplement Label Database (DSLD); the interaction data is built on the Natural Medicines database and reviewed by HelloPharmacist pharmacists.
Will this help my joint pain?
Glucosamine sulfate is likely effective for osteoarthritis pain and function. Chondroitin sulfate is possibly effective for the same condition—the evidence suggests benefit, but it's not as strong. Results vary, and quality differs between products, so talk with your doctor about whether it's the right choice for your specific situation.
What side effects should I expect?
The most common are digestive: bloating, constipation, diarrhea, heartburn, nausea, and abdominal pain. Rare but serious reactions include allergic rash, swelling, and in a small number of cases, severe allergic reactions. If you notice skin symptoms, breathing trouble, or swelling around the eyes or face, stop and contact your doctor.
Is it safe to take while pregnant or breastfeeding?
Glucosamine and chondroitin lack enough safety data during pregnancy and breastfeeding—the facts advise against both. Potassium from your normal diet is fine, but don't use potassium supplements unless your doctor says it's okay. Talk with your doctor or pharmacist about what's right for you.
Can I take this with my blood pressure medication?
It depends on which one you take. Potassium chloride in this product can dangerously raise blood potassium levels if you're on an ACE inhibitor, ARB, or potassium-sparing diuretic. Check with your pharmacist before starting—they'll know your specific medication and whether it's safe to combine.
What if I'm on a blood thinner like warfarin?
This product contains glucosamine and chondroitin, both of which can increase warfarin's blood-thinning effects and raise your bleeding risk. Do not take this without clearing it with your doctor first—your warfarin dose may need adjustment if you do.
Why does the label say there are four active ingredients but I'm only hearing about three?
One of the four is "Glucosamine Sulfate Potassium Chloride," which is actually a blend of glucosamine and potassium—both of which are listed separately as their own actives. So the product delivers glucosamine, chondroitin, MSM, and potassium in total.

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

Not sure if Glucosamine & Chondroitin + MSM is safe with your meds?

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Label information is sourced from the NIH Dietary Supplement Label Database and reflects the product version on file; always read your actual product label. This page is for education only and is not a substitute for professional medical advice. Confirm with your pharmacist or doctor before combining supplements and medications.

Glucosamine & Chondroitin + MSM label
Go deeper

The Full Monographs Behind Glucosamine & Chondroitin + MSM’s Ingredients

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

Herb & supplement monograph

Chondroitin Sulfate

Interacts with 2 drugs

Chondroitin sulfate is a naturally occurring building block of cartilage that is widely taken, often with glucosamine, for osteoarthritis joint pain. The evidence is mixed—some people report...

Read the full Chondroitin Sulfate monograph → Herb & supplement monograph

Glucosamine

Interacts with 170 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 the knee. The evidence is mixed, with so...

Read the full Glucosamine monograph → Herb & supplement monograph

Potassium

Interacts with 62 drugs

Potassium is an essential mineral your body needs for nerve signals, muscle function, and a steady heartbeat, and most people get enough from a balanced diet rich in fruits and vegetables. P...

Read the full Potassium monograph →
Sources

Sources & How We Checked

Glucosamine & Chondroitin + MSM's label data comes from the NIH Dietary Supplement Label Database; the ingredient interaction data is from the Natural Medicines database, reviewed by our pharmacists.

Content is written and reviewed by licensed HelloPharmacist pharmacists. See our data sources and editorial standards for how this information is built and checked.

The 92 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.

Potassium 12 references
  1. McEvoy GK, ed. AHFS Drug Information. Bethesda, MD: American Society of Health-System Pharmacists, 1998.
  2. Gennaro A. Remington: The Science and Practice of Pharmacy. 19th ed. Lippincott: Williams & Wilkins, 1996.
  3. Whelton PK, He J, Cutler JA, et al. Effects of oral potassium on blood pressure. Meta-analysis of randomized controlled clinical trials. JAMA 1997;277:1624-32. PubMed
  4. Phillips, C. O., Kashani, A., Ko, D. K., Francis, G., and Krumholz, H. M. Adverse effects of combination angiotensin II receptor blockers plus angiotensin-converting enzyme inhibitors for left ventricular dysfunction: a quantitative review of data from ra DOI
  5. Altieri, P. I., Herrero, C., Suero, R., and Ortiz, A. Bleeding duodenal ulcer in a patient taking slow-releasing potassium tablets. Bol.Asoc.Med P.R. 1977;69(8):276.
  6. Raf, L. E. Enteric-coated potassium chloride tablets and ulcer of the small intestine. Acta Chir Scand Suppl 1967;(374):1-87.
  7. Potassium chloride oral solution [package insert]. Allentown, PA: Lehigh Valley Technologies, Inc.; 2014.
  8. Potassium chloride injection [package insert]. Lake Forest, IL: Hospira Inc.; 2009.
  9. Patel RB, Tannenbaum S, Viana-Tejedor A, et al. Serum potassium levels, cardiac arrhythmias, and mortality following non-ST-elevation myocardial infarction or unstable angina: insights from MERLIN-TIMI 36. Eur Heart J Acute Cardiovasc Care 2017 Feb;6(1):1 PubMed
  10. Malta D, Arcand J, Ravindran A, Floras V, Allard JP, Newton GE. Adequate intake of potassium does not cause hyperkalemia in hypertensive individuals taking medications that antagonize the renin angiotensin aldosterone system. Am J Clin Nutr 2016 Oct;104(4 PubMed
  11. Keskin M, Kaya A, Tatlisu MA, et al. The effect of serum potassium level on in-hospital and long-term mortality in ST elevation myocardial infarction. Int J cardiol. 2016 Oct 15;221:505-10.
  12. Stallings VA, Harrison M, Oria M; Committee to Review the Dietary Reference Intakes for Sodium and Potassium, Food and Nutrition Board, Health and Medicine Division, National Academies of Sciences, Engineering, and Medicine. Washington (DC): National Acad

See these in context on the Potassium monograph →

Chondroitin Sulfate 22 references
  1. 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.
  2. Tallia AF, Cardone DA. Asthma exacerbation associated with glucosamine-chondroitin supplement. J Am Board Fam Pract 2002;15:481-4..
  3. Danao-Camara T. Potential side effects of treatment with glucosamine and chondroitin. Arthritis Rheum 2000;43:2853. PubMed
  4. Rozenfeld V, Crain JL, Callahan AK. Possible augmentation of warfarin effect by glucosamine-chondroitin. Am J Health Syst Pharm 2004;61:306-307. PubMed
  5. Clegg DO, Reda DJ, Harris CL, et al. Glucosamine, chondroitin sulfate, and the two in combination for painful knee osteoarthritis. N Engl J Med 2006;354:795-808. DOI
  6. Knudsen J, Sokol GH. Potential glucosamine-warfarin interaction resulting in increased international normalized ratio: Case report and review of the literature and MedWatch database. Pharmacotherapy 2008;28:540-8. PubMed
  7. Yue QY, Strandell J, Myrberg O. Concomitant use of glucosamine potentiates the effect of warfarin. Jan 2006. Drug Safety 29(10):911-1010. DOI
  8. Nordling, J. and van, Ophoven A. Intravesical glycosaminoglycan replenishment with chondroitin sulphate in chronic forms of cystitis. A multi-national, multi-centre, prospective observational clinical trial. Arzneimittelforschung. 2008;58(7):328-335. PubMed
  9. Nickel, J. C., Egerdie, B., Downey, J., Singh, R., Skehan, A., Carr, L., and Irvine-Bird, K. A real-life multicentre clinical practice study to evaluate the efficacy and safety of intravesical chondroitin sulphate for the treatment of interstitial cystit
  10. Oliviero, U., Sorrentino, G. P., De Paola, P., Tranfaglia, E., D'Alessandro, A., Carifi, S., Porfido, F. A., Cerio, R., Grasso, A. M., Policicchio, D., and . Effects of the treatment with matrix on elderly people with chronic articular degeneration. Drug
  11. Crowley, D. C., Lau, F. C., Sharma, P., Evans, M., Guthrie, N., Bagchi, M., Bagchi, D., Dey, D. K., and Raychaudhuri, S. P. Safety and efficacy of undenatured type II collagen in the treatment of osteoarthritis of the knee: a clinical trial. Int.J.Med.Sc PubMed
  12. Nickel, J. C., Egerdie, R. B., Steinhoff, G., Palmer, B., and Hanno, P. A multicenter, randomized, double-blind, parallel group pilot evaluation of the efficacy and safety of intravesical sodium chondroitin sulfate versus vehicle control in patients with
  13. Sawitzke, A. D., Shi, H., Finco, M. F., Dunlop, D. D., Harris, C. L., Singer, N. G., Bradley, J. D., Silver, D., Jackson, C. G., Lane, N. E., Oddis, C. V., Wolfe, F., Lisse, J., Furst, D. E., Bingham, C. O., Reda, D. J., Moskowitz, R. W., Williams, H. J.
  14. Wildi, L. M., Raynauld, J. P., Martel-Pelletier, J., Beaulieu, A., Bessette, L., Morin, F., Abram, F., Dorais, M., and Pelletier, J. P. Chondroitin sulphate reduces both cartilage volume loss and bone marrow lesions in knee osteoarthritis patients starti
  15. Pavelka and et al. Double-blind, dose effect study of oral cs 4 & 6 1200mg, 800mg, 200mg against placebo in the treatment of femorotibial osteoarthritis. Wular Rheumatol Liter 1998;27(suppl 2):63.
  16. Cerda C, Bruguera M, Parés A. Hepatotoxicity associated with glucosamine and chondroitin sulfate in patients with chronic liver disease. World J Gastroenterol 2013;19(32):5381-4. PubMed
  17. von Felden J, Montani M, Kessebohm K, Stickel F. Drug-induced acute liver injury mimicking autoimmune hepatitis after intake of dietary supplements containing glucosamine and chondroitin sulfate. Int J Clin Pharmacol Ther 2013;51(3):219-23. PubMed
  18. Provenza JR, Shinjo SK, Silva JM, Peron CR, Rocha FA. Combined glucosamine and chondroitin sulfate, once or three times daily, provides clinically relevant analgesia in knee osteoarthritis. Clin Rheumatol 2015;34:1455-62. PubMed
  19. Ossendza RA, Grandval P, Chinoune F, Rocher F, Chapel F, Bernardini D. [Acute cholestatic hepatitis due to glucosamine forte]. Gastroenterol Clin Biol. 2007 Apr;31(4):449-50.
  20. Greenlee H, Crew KD, Shao T, Kranwinkel G, Kalinsky K, Maurer M, Brafman L, Insel B, Tsai WY, Hershman DL. Phase II study of glucosamine with chondroitin on aromatase inhibitor-associated joint symptoms in women with breast cancer. Support Care Cancer 201 PubMed
  21. Chu EC, Huang KHK, Cheung G, Ng G, Lin A. Delayed Skin Allergy to Glucosamine Chondroitin Supplement. Cureus 2023;15(3):e36310. PubMed
  22. Lila AM, Alekseeva LI, Baranov AA, et al. Chondroitin sulfate and glucosamine combination in patients with knee and hip osteoarthritis: A long-term observational study in Russia. World J Orthop 2023;14(6):443-457. PubMed

See these in context on the Chondroitin Sulfate monograph →

Glucosamine 58 references
  1. Adams ME. Hype about glucosamine. Lancet 1999;354:353-4. PubMed
  2. 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
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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.

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