Is a filler-free powder like Tri-Acta a better buy than this tablet?

Not on chondroitin, which is usually the reason to buy the category at all. At each maker's own label dose for a 70 lb dog, this tablet's maintenance range delivers 300–600 mg of chondroitin sulfate a day; Tri-Acta Regular delivers 187–250 mg and Tri-Acta H.A. delivers 176 mg — so the tablet's floor sits above the powder's ceiling. Glucosamine is much closer (600–1,200 mg against 750–1,000 and 924), and the powder carries considerably more MSM. Yearly cost at maintenance runs about $122–243 here against $128–170 and $217. The powder's real advantage is that it contains nothing else: no chew base, no dextrose, no undisclosed flavouring, which makes it the option for a dog on an elimination diet and makes this tablet the wrong one. Panels and prices verified 31 August 2026.

What is the difference between Cosequin DS Plus MSM and the MSM & HA version?

The base is identical — 600 mg FCHG49 glucosamine, 300 mg TRH122 chondroitin, 250 mg MSM and 3 mg manganese (as manganese ascorbate) per tablet, all four re-verified on cosequin.com 19 August 2026. The with-HA version adds 6 mg of sodium hyaluronate and comes in different bottle counts (60/75/120/150/180 versus 60/132/250 for the plain tablet). The ASIN we link currently sells the with-HA 75-count. Six milligrams of HA is a small oral dose with thin canine evidence behind it, so we would not pay a large premium for it — compare price per tablet and buy the cheaper line.

How many tablets does my dog need per day?

Nutramax's own schedule, by weight: up to 15 lb, half a tablet a day; 16–30 lb, one; 31–60 lb, two; over 60 lb, three — all for an initial 4–6 weeks, then roughly half that for maintenance (over 60 lb maintains on 1–2 tablets a day). That schedule is why bottle count matters more than sticker price: a 75-count is 25 days of loading for a Labrador but five months for a terrier.

What does Cosequin actually cost per day?

At the prices we verified in August 2026 ($24.99 for the linked 75-count with HA; $34.91 for the plain 132-count; $62.99 for the 250-count on Amazon — and $59.99 for that same 250-count on store.cosequin.com, the cheapest route to the tested dose at about $0.24 a tablet, on which we earn nothing), a tablet runs $0.24–0.33. That makes loading roughly $0.17/day for a small dog, $0.53–0.67/day at 31–60 lb, and $0.79–1.00/day over 60 lb, with maintenance about half of each. Budget the loading month before you start — stopping halfway through it tells you nothing.

How long before I can tell if it is working?

Give it the full 4–6 week loading period, and decide in advance what 'working' will look like. Owner impressions in this population are unreliable through no fault of the owner — a blinded canine osteoarthritis trial measured a 39.7% caregiver placebo rate. Pick one observable thing (stairs, the jump into the car, length of the morning stiffness) or use a validated checklist, score it before the first tablet, and score it again at six weeks. Our guide to judging whether a limp is improving covers how to run that fairly.

Cosequin or Dasuquin — which should I buy?

Dasuquin is the same Nutramax FCHG49/TRH122 base with ASU, Boswellia and green tea extract added, at roughly two to three times the daily cost. The added ingredients have laboratory and animal-model support rather than strong canine clinical trials. Our comparison article runs the numbers, but the short version: start with Cosequin; consider the upgrade only if six measured weeks on the cheaper base did nothing and you want one more structured trial before abandoning the category.

Nutramax

Cosequin Plus MSM & HA Joint Health Supplement (Chewable Tablets)

Name: Nutramax Cosequin Plus MSM & HA Joint Health Supplement (Chewable Tablets)
Brand: Nutramax
SKU: B0753LVSCB
Availability: InStock

9.0/ 10 · our score

$25–$63

Check price on Amazon

We earn a commission if you buy through this link. It does not change what we recommend or how we score it — see our affiliate disclosure.

Best for

First-line joint supplementation for dogs of any size

If you're going to put a dog on one supplement, this is still the one we'd start with: the FCHG49/TRH122 forms are the ones that have actually been put in trials rather than assumed into them, and the DS tablet delivers them at full strength for well under a dollar a day even in a large dog. Two honesty notes. The evidence for the whole category is modest and the caregiver placebo effect is not — so start it, give it six weeks, and judge it against something you measured before you began. And the listing's "#1 vet recommended brand" line is a marketing survey claim, not a clinical one; buy on the ingredient forms and the price per tablet, which you can verify.

What works

Contains FCHG49 glucosamine and TRH122 chondroitin — the specific patented forms that have actually been put in trials, rather than generic glucosamine. Corrected 31 August 2026: this line previously said "the patented forms used in published canine studies," which reads as support the record does not give. The positive placebo-controlled trial of these forms was in human knees (Das and Hammad 2000); the one blinded, placebo-controlled canine force-plate trial to test them — inside Dasuquin with MSM — found no significant advantage over placebo (Kampa 2023)
The linked tablet adds 6 mg sodium hyaluronate (HA) per tablet over the classic Plus MSM formula. Corrected 19 August 2026: this line previously said it also added 3 mg of manganese. It does not — the classic Plus MSM tablet carries the same 3 mg of manganese ascorbate, re-verified on cosequin.com that day. HA is the only difference
Maximum-strength (DS) dosing — 600 mg glucosamine per tablet
Chewable tablet, palatable for most dogs
Wide count range across the tablet line (60 to 250), so per-tablet price drops meaningfully if you buy the larger bottles

What doesn't

Tablets are large; some small dogs need them split
Slow onset — give it 4–6 weeks to evaluate effect
A big dog eats through a small bottle fast: over 60 lb, the loading dose is 3 tablets a day, so the linked 75-count is 25 days of loading
The linked 75-count with-HA variant costs more per tablet (~$0.33) than the plain-MSM 132-count (~$0.26) — the HA is 6 mg, and whether that is worth the premium is genuinely unclear
Supplement effects in this category are small enough that the measured 39.7% caregiver placebo rate can swamp them — judge it against a measurement, not an impression
Not vegan-friendly (chondroitin is animal-derived)
Nutramax publishes no inactive-ingredient list on either tablet line's own product page (verified absent again on cosequin.com 31 August 2026). We previously printed the base here as brewers dried yeast, dextrose and natural & artificial flavors, sourced to retailer label reproductions; on 31 August 2026 we could not re-reach any retailer carrying that list (Chewy 429, Petco 403, Drugs.com 403), so treat it as unverified. The checkable finding stands and is the one that matters: the base is not published, and a base you cannot read cannot be cleared for a dog on a strict elimination diet

Specifications

Materials: Per tablet: glucosamine HCl (FCHG49) 600 mg, sodium chondroitin sulfate (TRH122) 300 mg, MSM 250 mg, sodium hyaluronate (HA) 6 mg, manganese (manganese ascorbate) 3 mg
Sizes: Linked ASIN: MSM & HA chewable tablets, 75 ct · With-HA tablet line: 60 / 75 / 120 / 150 / 180 ct · Plain MSM tablet line: 60 / 132 / 250 ct
Made in: USA

What the linked bottle actually is

Amazon ASINs drift, and this one has: the listing we link now sells the MSM & HA chewable tablet, 75 count — same maximum-strength base as the classic "DS Plus MSM" tablet (600 mg FCHG49 glucosamine, 300 mg TRH122 chondroitin, 250 mg MSM and 3 mg manganese as manganese ascorbate), plus 6 mg of sodium hyaluronate per tablet. Verified against Nutramax's own product pages, re-read 19 August 2026. Corrected the same day: we had previously described the manganese as an addition of the with-HA tablet. It is not — both tablet lines carry it, and HA is the only difference.

Be clear-eyed about the HA: six milligrams is a small oral dose, the canine evidence for oral HA is thin, and we would not pay much extra for it. It happens that when we checked, the 75-count with HA was $24.99 while the plain 132-count was $34.91 — about $0.33 versus $0.26 per tablet. If your dog is large and the plain line's bigger bottles are cheaper per tablet, buy those; nothing in the evidence says you are giving anything up.

The real cost, by dog

The dosing schedule is the whole economics of this product, and it is printed smaller than the price.

Dog's weight	Loading (first 4–6 weeks)	Maintenance	Loading cost/day*
Up to 15 lb	½ tablet/day	½ every other day	≈ $0.13–0.17
16–30 lb	1 tablet/day	½ tablet/day	≈ $0.26–0.33
31–60 lb	2 tablets/day	1 tablet/day	≈ $0.53–0.67
Over 60 lb	3 tablets/day	1–2 tablets/day	≈ $0.79–1.00

*Range spans the per-tablet price of the 132-count plain tablet ($0.26) to the 75-count with-HA ($0.33), August 2026 prices.

Two practical consequences. A 75-count bottle is 25 days of loading for a dog over 60 lb — it will not even cover the trial period, so a big dog should start on a big bottle. And a full year of maintenance for that same dog runs roughly $95–$243 depending on bottle count and on whether he maintains at one tablet a day or two — $95 is the cheap 132-count at one tablet, $243 the linked 75-count at two, which is real money for a product you should only keep buying if the six-week trial earned it.

What is in the tablet besides the actives

Here is a gap we could not close from the manufacturer's own website: cosequin.com lists the active ingredients for both tablet lines and no inactive ingredients at all — we verified the absence on both the MSM & HA and the plain Plus MSM product pages on 21 August 2026, and again on 31 August and 1 September 2026.

Correction, 1 September 2026. This paragraph previously went on to print a full inactive-ingredient list — brewers dried yeast, dextrose, magnesium stearate, microcrystalline cellulose, natural & artificial flavors, and silicon dioxide — attributed to "veterinary retailers." That attribution named no retailer and no date, and when we went back for it on 31 August 2026 no retailer carrying it was reachable (Chewy 429, Petco 403, Drugs.com 403). The list is therefore unverified and we have withdrawn it rather than leave it standing as though we had checked it. The cons field above was corrected on 31 August; this prose was not, and that inconsistency is our error.

What stands is the checkable finding, and it is the one that matters: the base is not published by the manufacturer, and a base you cannot read cannot be cleared for a dog on a strict elimination diet.

Three consequences worth knowing before you buy:

Elimination diets. "Natural & artificial flavors" is an undisclosed ingredient. If your dog is on a strict elimination or hydrolysed diet for suspected food allergy, an unnamed flavouring is exactly the kind of variable the diet exists to exclude — ask your vet before adding it, or wait until the diet trial is over.
Diabetic dogs. The tablet contains dextrose. The amount per tablet is small and almost certainly trivial, but Nutramax does not publish the quantity, so "trivial" is our inference, not their number. Mention it to your vet if your dog is diabetic.
Calories. No calorie figure is published anywhere we could find — not on cosequin.com, not on the Amazon listing, not on retailer labels (verified absent 21 August 2026). A dense chewable tablet is a far smaller calorie worry than the 2–4 soft chews a day some competitors prescribe, but the honest statement is that nobody has printed the number, including for the three-tablet loading dose a large dog takes daily for six weeks.

No xylitol appears on any label reproduction we read — worth stating plainly, because we screen every flavoured consumable for it.

The cheaper thing first

Before any supplement: weight. Ask your vet for a body condition score at the next visit — for an overweight arthritic dog, taking weight off is cheaper than putting anything in, and it is the intervention your vet is most likely to endorse without hesitation. If the dog is lean and you still want to try a supplement, run one product at a time against a measurement — our guide to telling whether a limp is actually improving explains why memory is not an instrument, and the dosing-by-weight reference has the band-by-band math for every product we cover.

Who should not buy it

Owners expecting an NSAID. This is not analgesia and it will not rescue a painful dog this week. A dog who is visibly worse belongs at the vet, not on a loading dose.
Dogs with shellfish-source sensitivities — the glucosamine is shellfish-derived; ask your vet if that has ever been flagged.
Anyone unwilling to run the six-week trial properly. Half a loading phase, judged by feel, produces exactly the 39.7%-placebo-shaped answer the literature warns about — and then you either waste the money for years or abandon a product that might have been working.

Head-to-head against a "100% active" powder

The most common challenge to this tablet is not another tablet. It is a filler-free powder — Tri-Acta being the clearest example — sold on the argument that a Cosequin tablet is only part active while every milligram of the powder is an ingredient you are paying for. The argument is true and it does not lead where it appears to.

Run it on one axis, chondroitin, for a 70 lb dog at each maker's own label dose. Panels and prices read at source 31 August 2026.

Per day, 70 lb dog, maintenance	Chondroitin sulfate	Glucosamine	Cost/day
Cosequin, 1–2 tablets	300–600 mg	600–1,200 mg	$0.33–0.67
Tri-Acta Regular, 1.5–2 g	187–250 mg	750–1,000 mg	$0.35–0.47
Tri-Acta H.A., 2 g	176 mg	924 mg	$0.59

This tablet's smallest maintenance dose delivers more chondroitin per day than the powder's largest. The reason is formulation rather than dilution: a gram of the H.A. powder is 44% MSM and 8.8% chondroitin, and chondroitin is the expensive ingredient in the category. "No filler" describes what else is in the scoop, not how much medicine reaches the dog.

Where the powder genuinely wins, and it is decisive for some dogs: it has no chew base, no dextrose and no undisclosed flavouring, so it remains an option for a dog on a strict elimination or hydrolysed diet — which this tablet is not, for the reason set out above. The full comparison, including the loading-dose arithmetic and why neither product has a published canine trial, is in Cosequin vs Tri-Acta.

Head-to-head: the one honest upgrade path

Within Nutramax's own line, Dasuquin with MSM is this product plus ASU, Boswellia and green tea extract at roughly two to three times the daily cost — the add-ons carry laboratory-grade evidence, not canine trial results. The full comparison, including when the upgrade is rational, is in Dasuquin vs Cosequin.

Frequently asked

Is a filler-free powder like Tri-Acta a better buy than this tablet?: Not on chondroitin, which is usually the reason to buy the category at all. At each maker's own label dose for a 70 lb dog, this tablet's maintenance range delivers 300–600 mg of chondroitin sulfate a day; Tri-Acta Regular delivers 187–250 mg and Tri-Acta H.A. delivers 176 mg — so the tablet's floor sits above the powder's ceiling. Glucosamine is much closer (600–1,200 mg against 750–1,000 and 924), and the powder carries considerably more MSM. Yearly cost at maintenance runs about $122–243 here against $128–170 and $217. The powder's real advantage is that it contains nothing else: no chew base, no dextrose, no undisclosed flavouring, which makes it the option for a dog on an elimination diet and makes this tablet the wrong one. Panels and prices verified 31 August 2026.
What is the difference between Cosequin DS Plus MSM and the MSM & HA version?: The base is identical — 600 mg FCHG49 glucosamine, 300 mg TRH122 chondroitin, 250 mg MSM and 3 mg manganese (as manganese ascorbate) per tablet, all four re-verified on cosequin.com 19 August 2026. The with-HA version adds 6 mg of sodium hyaluronate and comes in different bottle counts (60/75/120/150/180 versus 60/132/250 for the plain tablet). The ASIN we link currently sells the with-HA 75-count. Six milligrams of HA is a small oral dose with thin canine evidence behind it, so we would not pay a large premium for it — compare price per tablet and buy the cheaper line.
How many tablets does my dog need per day?: Nutramax's own schedule, by weight: up to 15 lb, half a tablet a day; 16–30 lb, one; 31–60 lb, two; over 60 lb, three — all for an initial 4–6 weeks, then roughly half that for maintenance (over 60 lb maintains on 1–2 tablets a day). That schedule is why bottle count matters more than sticker price: a 75-count is 25 days of loading for a Labrador but five months for a terrier.
What does Cosequin actually cost per day?: At the prices we verified in August 2026 ($24.99 for the linked 75-count with HA; $34.91 for the plain 132-count; $62.99 for the 250-count on Amazon — and $59.99 for that same 250-count on store.cosequin.com, the cheapest route to the tested dose at about $0.24 a tablet, on which we earn nothing), a tablet runs $0.24–0.33. That makes loading roughly $0.17/day for a small dog, $0.53–0.67/day at 31–60 lb, and $0.79–1.00/day over 60 lb, with maintenance about half of each. Budget the loading month before you start — stopping halfway through it tells you nothing.
How long before I can tell if it is working?: Give it the full 4–6 week loading period, and decide in advance what 'working' will look like. Owner impressions in this population are unreliable through no fault of the owner — a blinded canine osteoarthritis trial measured a 39.7% caregiver placebo rate. Pick one observable thing (stairs, the jump into the car, length of the morning stiffness) or use a validated checklist, score it before the first tablet, and score it again at six weeks. Our guide to judging whether a limp is improving covers how to run that fairly.
Cosequin or Dasuquin — which should I buy?: Dasuquin is the same Nutramax FCHG49/TRH122 base with ASU, Boswellia and green tea extract added, at roughly two to three times the daily cost. The added ingredients have laboratory and animal-model support rather than strong canine clinical trials. Our comparison article runs the numbers, but the short version: start with Cosequin; consider the upgrade only if six measured weeks on the cheaper base did nothing and you want one more structured trial before abandoning the category.