Answer box
Cosequin vs Dasuquin in one paragraph: Both are Nutramax Laboratories joint supplements built on glucosamine hydrochloride and sodium chondroitin sulfate. The Dasuquin labels we reviewed add avocado/soybean unsaponifiables (ASU), Boswellia serrata extract and green tea extract, while the Cosequin chewable tablet adds MSM and manganese. No published head-to-head trial of the two brands turned up in our search, so “which is better” cannot be answered from research. Independent reviews also rate the evidence for glucosamine and chondroitin as weak. Your dog’s size, budget and veterinarian’s advice are better guides than brand reputation.
Cosequin and Dasuquin differ mainly in what is added to the glucosamine-and-chondroitin base, and no published trial that we could find compares them. Below are the label figures side by side (captured 2026-10-18), who each formula is built for by weight band, and what the evidence supports versus what is marketing.
Educational information only, not veterinary advice. Label figures change when Nutramax revises a formula, so check the package in your hands.
What are Cosequin and Dasuquin, and who makes them?
Both brands come from Nutramax Laboratories. The Cosequin site calls Cosequin the “#1 vet recommended retail joint health supplement brand,” and Dasuquin’s site uses similar wording. Both footnote the claim to a survey of small animal veterinarians with a one-line source note that gives no methods or figures. A recommendation survey measures popularity, not how well a product works.
Each brand is also a family. Dasuquin lists chewable tablets and soft chews, with and without MSM, with omega-3s, a senior version, and “Advanced” versions; Cosequin lists soft chews, chewable tablets and sprinkle capsules. Online comparisons often contradict each other because they compare different products. Our table uses the two closest like-for-like products: the Cosequin Chewable Tablets with MSM and the Dasuquin Chewable Tablets with MSM. For single-product detail, see our guides to Cosequin for dogs and Dasuquin Advanced.
How do the Cosequin and Dasuquin labels compare, ingredient by ingredient?
Every figure below was read from the manufacturer’s live product pages on 2026-10-18 (cosequin.com and dasuquin.com, which are Nutramax sites). Amounts are per chewable tablet.
| Ingredient (per chewable tablet) | Cosequin Chewable Tablets with MSM | Dasuquin Chewable Tablets with MSM, small/medium dogs | Dasuquin Chewable Tablets with MSM, large dogs |
|---|---|---|---|
| Glucosamine hydrochloride | 600 mg (FCHG49) | 600 mg | 900 mg |
| Sodium chondroitin sulfate | 300 mg (label notes 10% moisture) | 250 mg (hydrous basis) | 350 mg (hydrous basis) |
| MSM (methylsulfonylmethane) | 250 mg | 400 mg | 800 mg |
| ASU (avocado/soybean unsaponifiables) powder | Not listed | 45 mg (standardized to at least 30% ASU) | 90 mg |
| Boswellia serrata extract | Not listed | 20 mg | 40 mg |
| Green tea extract | Not listed | 16 mg | 32 mg |
| Manganese | 3 mg (as manganese ascorbate) | Not listed | Not listed |
Sources: https://www.cosequin.com/joint-supplement/dog/chewable-tablet/msm and https://www.dasuquin.com/product/dasuquin-chewable-tablets-w-msm, both read 2026-10-18.
A few things stand out.
The chondroitin gap is small and runs both ways. The Cosequin tablet lists 300 mg of chondroitin. Dasuquin’s small/medium tablet lists 250 mg and its large-dog tablet lists 350 mg. The glucosamine figure matches at 600 mg between the Cosequin tablet and Dasuquin’s small/medium tablet.
MSM is present in both, at different amounts. Dasuquin’s MSM figure is higher on the tablet we compared. Whether that difference matters clinically is not something any trial we found has tested.
ASU, Boswellia and green tea are the real divider. These three appear on the Dasuquin labels we read and not on the Cosequin tablet label.
Manganese appears on the Cosequin tablet only. The cosequin.com page lists 3 mg (as manganese ascorbate). Older retailer or third-party labels for related Cosequin products may show other manganese figures; we could not re-verify one, so we rely on the live manufacturer page. Label figures can be revised, so treat the live manufacturer page as current and compare it with the package in your hands.
Nutramax’s Dasuquin page states that “research shows” the combination works better than glucosamine and chondroitin sulfate alone, and it describes cell-culture work, but the page does not name the papers. We cover what the public literature shows below.
Which dogs is each product built for, according to the label?
The manufacturer pages we read do not say “for mild arthritis” or “for severe arthritis,” although several comparison sites claim a split like that. What the labels distinguish is dog size and format.
| Label feature | Cosequin Chewable Tablets with MSM | Dasuquin Chewable Tablets with MSM |
|---|---|---|
| Number of formulas | One, with weight bands | Two: small/medium and large |
| Weight bands on label | Up to 15 lb, 16-30, 31-60, over 60 | Under 10 lb, 10-29, 30-59 (small/medium formula); 60-120 lb (large formula) |
| Initial period stated | 4-6 weeks | 4-6 weeks |
| Maintenance stated | Reduced level after the initial period | Reduced level; label says it may be raised temporarily during more active periods |
| Stated use | “Whether you have a young or senior dog, a small or large breed” | Label says “Consult your veterinarian to determine which formula is right for your dog” |
Sources: same two pages, read 2026-10-18. Follow the label or your veterinarian for any serving; the amounts depend on the exact product and weight band.
The Dasuquin large-dog formula carries higher amounts of every active in the tablet, while Cosequin covers large dogs by raising the number of tablets. Per-day totals can therefore land closer together than per-tablet figures suggest, so compare per-day label totals for your dog’s weight.
Does research show Dasuquin works better than Cosequin?
No head-to-head trial of Cosequin against Dasuquin appeared in our PubMed search (queries on the brand names returned no results). Absence from our search is not proof that none exists, but it means any claim that one beats the other is not backed by a trial we can point to.
What exists instead is research on the ingredients, with different levels of reliability.
Strong evidence: for NSAID drugs, not for these supplements. A systematic review of 68 papers published through July 2007 found a high level of comfort for carprofen, firocoxib and meloxicam, and weak or no evidence for several other options. That review did not rank glucosamine/chondroitin products among the strongest-supported options (Sanderson et al., Vet Rec 2009, PMID 19346540).
Weak evidence for glucosamine/chondroitin. A 2022 systematic review and meta-analysis of 57 articles from the Université de Montréal group reported a “very marked non-effect” of chondroitin-glucosamine nutraceuticals on analgesia and recommended they “should no longer be recommended for pain management” in canine and feline osteoarthritis. It found clearer analgesic efficacy for omega-3 diets and supplements (Barbeau-Grégoire et al., Int J Mol Sci 2022, PMID 36142319, DOI 10.3390/ijms231810384). The Merck Veterinary Manual’s osteoarthritis chapter (full review October 2024, updated August 2025) cites that meta-analysis in concluding the evidence did not support these supplements for pain management, and calls weight optimization the primary method to slow development of osteoarthritis in dogs.
Mixed trial data. In a 2023 randomized, placebo-controlled trial of 75 dogs with hip osteoarthritis, the glucosamine/chondroitin group did not improve peak vertical force significantly from baseline, while two marine fatty acid products and carprofen did. That group sat between placebo and the active groups at week six, and the subjective orthopedic score showed no significant change in any group (Kampa et al., Front Vet Sci 2023, PMID 36816197, DOI 10.3389/fvets.2023.1033188). The abstract does not name the product, but the full-text methods identify it as Dasuquin with MSM soft chews. This is a six-week trial against placebo and other agents, not a comparison with Cosequin, and the authors state it was funded by Pharmalink International, a company outside the Nutramax brands.
Preliminary evidence for ASU. ASU, the main Dasuquin-only ingredient, has mostly laboratory and experimental-model data. In a model where osteoarthritis was induced surgically in 16 dogs, ASU at 10 mg/kg per day for eight weeks was associated with less cartilage lesion severity than placebo (Boileau et al., Arthritis Res Ther 2009, PMID 19291317, DOI 10.1186/ar2649). That is an induced-injury model, not owner-reported pets with naturally occurring arthritis, and it tested ASU alone. The paper discloses support from Laboratoires Expanscience, with three authors employed by the company and two acting as consultants.
Manufacturer-linked evidence. A cell-culture study found that an ASU, glucosamine and chondroitin combination, with or without carprofen, suppressed inflammatory markers in canine chondrocytes. Its authors list Nutramax Laboratories’ research and development department, and its conflict-of-interest statement describes four of the five as former Nutramax employees. The study reports a combination of ingredients at specified concentrations in culture, not tablets in a living dog (Grzanna et al., Cartilage 2020, PMID 29938530, DOI 10.1177/1947603518783495). Cell-culture results are an early step, and they do not show that a chew changes how a dog moves.
Putting that together: Dasuquin’s extra ingredients have a plausible rationale and some preliminary data, but evidence that they produce a visible difference in a living dog remains limited, and the shared base ingredients rate poorly in the independent reviews we read. A veterinary clinical guide on nonherbal nutraceuticals (Ratsch, Levine and Wakshlag, Vet Clin North Am Small Anim Pract 2022, PMID 35562213) covers fish oil, glucosamine/chondroitin and ASU together, as a group and not a ranked list.
How should you choose? A decision framework by dog situation
This is a way to organize the conversation with your veterinarian, not a prescription.
| Your dog’s situation | Questions worth asking | Label feature that may matter |
|---|---|---|
| Healthy adult, large breed, no signs yet | Is a supplement needed at all? Would weight and exercise planning matter more? | Maintenance language on the label |
| Newly stiff or slow after rest | Has a vet examined the joints? Is pain medication a better first step? | Do not start with a supplement alone |
| Diagnosed osteoarthritis, already on veterinary pain management | Will a supplement overlap or interact with current medication? | Check ingredient list for shellfish, soy and other allergens |
| Overweight dog | Has a weight plan been set? | Merck Veterinary Manual describes modest weight loss as well established for improving function |
| Dog with food allergies or on a restricted diet | Do the inactive ingredients fit? | The Dasuquin tablet page lists soy protein isolate and brewers dried yeast among other ingredients; ask Nutramax for the full inactive list of any product you consider |
If your dog is also dealing with obvious pain, our guides on dog joint pain and glucosamine for dogs cover signs and ingredient background in more depth.
How long does it take to see a difference?
Both manufacturers describe an initial period of four to six weeks, and both say some dogs may respond sooner. The 2023 hip osteoarthritis trial above tracked dogs over six weeks and measured at weeks two, four and six, which is a reasonable window for any supplement trial. Because evidence remains limited, “no visible change” is a realistic outcome, and a dog that improves may be doing so for other reasons, such as weight loss or changed activity. Log stairs, rising from rest and walk length before you start, so you compare against more than memory.
What are the most common mistakes when comparing the two?
- Comparing different products. A Cosequin sprinkle capsule and a Dasuquin soft chew with omega-3s are not like for like. Match format and weight band first.
- Treating “veterinarian recommended” as evidence of effect. It is a survey result, per the brands’ own footnotes.
- Stacking both brands. Both supply glucosamine and chondroitin, so combining them duplicates ingredients. Ask your vet before doubling up.
- Skipping the diagnosis. Limping or reluctance to jump can have causes other than osteoarthritis.
Cosequin vs Dasuquin: myth versus fact
| Myth | What the sources say |
|---|---|
| “Dasuquin is for severe arthritis and Cosequin is for mild cases.” | The manufacturer pages we read make no such severity split; they distinguish formulas by dog size and ingredients. |
| “Dasuquin has been proven stronger than Cosequin.” | We found no published head-to-head trial of the two brands. |
| “Glucosamine and chondroitin are proven to relieve dog arthritis pain.” | A 2022 meta-analysis and the Merck Veterinary Manual both report that the evidence did not support their use for pain management. |
| “ASU regenerates cartilage.” | ASU data are mostly experimental-model and cell-culture work; evidence for owned dogs remains limited. |
When to call your vet
Contact your veterinarian promptly, not after a month of supplement trials, if you notice any of the following:
- Sudden limping, a leg held off the ground, or a dog that cries out when touched or moved
- Reluctance to climb stairs, jump or rise that is new or getting worse
- Swollen, warm or visibly misshapen joints
- Appetite loss, lethargy, vomiting, diarrhea, facial swelling or hives after starting a supplement
- Your dog is on prescription medication, is pregnant or nursing, or has a medical condition, and you want to add any supplement
- No clear change after the manufacturer’s stated initial period, or signs that keep progressing
If side effects are your concern, see our guide on Cosequin side effects in dogs.
Vet-conversation checklist
Bring this list to your appointment:
- Which joints are affected, and how was osteoarthritis confirmed or ruled out?
- Does my dog need a weight target?
- Which format and weight band fits, and why?
- Do any ingredients conflict with medications or allergies (shellfish, soy, yeast)?
- How will we judge whether it works, and when do we reassess?
- What would make you change strategy, such as omega-3s or prescription pain control?
Frequently asked questions
Is Dasuquin better than Cosequin?
Dasuquin lists more ingredients, including ASU, Boswellia and green tea extract, but no head-to-head trial shows it works better. Which is better for your dog depends on size, your veterinarian’s advice and how your dog responds.
Can I give my dog Cosequin and Dasuquin together?
The labels do not describe combining them, and both supply glucosamine and chondroitin, so doubling up duplicates ingredients. Ask your veterinarian before combining any joint products.
Does Cosequin contain ASU?
The Cosequin chewable tablet label we reviewed lists glucosamine, chondroitin, MSM and manganese ascorbate, and does not list ASU. ASU appears on the Dasuquin labels we reviewed.
How long before I might see a difference?
Both labels describe an initial period of four to six weeks and say some dogs may respond sooner. Evidence for these ingredients remains limited, so some dogs show no clear change.
Are these supplements safe for dogs with a shellfish allergy?
The Cosequin and Dasuquin tablet pages we read did not state the source of the glucosamine or chondroitin. If your dog has a known allergy, ask your veterinarian and Nutramax directly before starting.
Can a joint supplement replace pain medication?
No. Supplements are not a substitute for veterinary diagnosis or prescribed pain management. The Merck Veterinary Manual describes weight optimization as the primary method to slow development of osteoarthritis in dogs.
References
Label and manufacturer pages were read on 2026-10-18. Figures may change when Nutramax revises a formula.
- Nutramax Laboratories. Cosequin Chewable Tablets Plus MSM Joint Support for Dogs (product page, 2026-10-18). https://www.cosequin.com/joint-supplement/dog/chewable-tablet/msm
- Nutramax Laboratories. Dasuquin Chewable Tablets with MSM (product page, 2026-10-18). https://www.dasuquin.com/product/dasuquin-chewable-tablets-w-msm
- Nutramax Laboratories. Dasuquin product line and About Dasuquin (2026-10-18). https://www.dasuquin.com/about
- Epstein ME. Osteoarthritis in Dogs and Cats. Merck Veterinary Manual, full review October 2024, last updated August 2025. https://www.merckvetmanual.com/musculoskeletal-system/osteoarthritis-in-dogs-and-cats/osteoarthritis-in-dogs-and-cats
- Barbeau-Grégoire M, Otis C, Cournoyer A, Moreau M, Lussier B, Troncy E. A 2022 Systematic Review and Meta-Analysis of Enriched Therapeutic Diets and Nutraceuticals in Canine and Feline Osteoarthritis. Int J Mol Sci. 2022. PMID 36142319. DOI 10.3390/ijms231810384. https://pubmed.ncbi.nlm.nih.gov/36142319/
- Kampa N, Kaenkangploo D, Jitpean S, et al. Study of the effectiveness of glucosamine and chondroitin sulfate, marine based fatty acid compounds (PCSO-524 and EAB-277), and carprofen for the treatment of dogs with hip osteoarthritis: a prospective, block-randomized, double-blinded, placebo-controlled clinical trial. Front Vet Sci. 2023. PMID 36816197. DOI 10.3389/fvets.2023.1033188. https://pubmed.ncbi.nlm.nih.gov/36816197/
- Sanderson RO, Beata C, Flipo RM, et al. Systematic review of the management of canine osteoarthritis. Vet Rec. 2009. PMID 19346540. DOI 10.1136/vr.164.14.418. https://pubmed.ncbi.nlm.nih.gov/19346540/
- Boileau C, Martel-Pelletier J, Caron J, et al. Protective effects of total fraction of avocado/soybean unsaponifiables on the structural changes in experimental dog osteoarthritis. Arthritis Res Ther. 2009. PMID 19291317. DOI 10.1186/ar2649. https://pubmed.ncbi.nlm.nih.gov/19291317/
- Grzanna MW, Secor EJ, Fortuno LV, Au AY, Frondoza CG. Anti-inflammatory effect of carprofen is enhanced by avocado/soybean unsaponifiables, glucosamine and chondroitin sulfate combination in chondrocyte microcarrier spinner culture. Cartilage. 2020. PMID 29938530. DOI 10.1177/1947603518783495. https://pubmed.ncbi.nlm.nih.gov/29938530/
- Ratsch BE, Levine D, Wakshlag JJ. Clinical guide to obesity and nonherbal nutraceuticals in canine orthopedic conditions. Vet Clin North Am Small Anim Pract. 2022. PMID 35562213. DOI 10.1016/j.cvsm.2022.03.002. https://pubmed.ncbi.nlm.nih.gov/35562213/
Veterinary disclaimer
This article is for general education and does not replace advice from a licensed veterinarian. Dog Health Insider does not diagnose, treat, cure or prevent any condition. Dietary supplements are not evaluated as drugs, and evidence for joint supplements remains limited. Talk with your veterinarian before starting, changing or combining any supplement, especially if your dog has a medical condition, takes medication, is pregnant or nursing, or has allergies.