Dasuquin and Cosequin are two of the most widely recommended joint supplements for dogs. Both are made by Nutramax Laboratories, and both contain glucosamine and chondroitin. Dasuquin adds avocado and soybean unsaponifiables (ASU). This comparison explains the differences, what research says and how supplements fit into a broader plan for joint health.
Bottom Line: Cosequin is a well-established glucosamine and chondroitin supplement, while Dasuquin adds ASU and costs more. Both come from a company with a reputation for quality control. Research on joint supplements in dogs is mixed, and they work best as part of a plan that includes weight control, exercise and vet-prescribed pain relief when needed.
At a Glance
| Feature | Details |
|---|---|
| Cosequin | Glucosamine and chondroitin; some versions add MSM |
| Dasuquin | Glucosamine, chondroitin and ASU; some versions add more |
| Maker | Nutramax Laboratories |
| Forms | Chewable tablets and soft chews |
| Prescription | No |
What It Is and How It Works
Glucosamine and chondroitin are building blocks of cartilage. They’re thought to support joint cartilage and may reduce inflammation, though research results in dogs are mixed.
ASU, found in Dasuquin, is an extract from avocado and soybean oils. Some studies suggest it may help protect cartilage, particularly when combined with glucosamine and chondroitin.
Supplements usually take several weeks to show any effect. Many vets suggest a trial of at least four to six weeks before judging. Keep notes on your dog’s mobility so you can compare.
Strengths
- Widely recommended by vets
- From a company known for quality control
- Cosequin is more affordable
- Dasuquin adds ASU
- Chewable forms are easy to give
Limitations
- Research is mixed
- Dasuquin costs more
- Takes weeks to see effects
- Not a substitute for vet care
A Broader Plan for Joint Health
Supplements are only one part of caring for a dog’s joints. Vets often focus first on:
| Approach | Why it matters |
|---|---|
| Healthy body weight | Extra weight puts more stress on joints and is one of the biggest factors in arthritis pain |
| Regular, moderate exercise | Keeps muscles strong and joints moving |
| Prescription pain relief | NSAIDs and other medications can greatly improve comfort |
| Physical therapy | Builds strength and range of motion |
| Home changes | Rugs on slippery floors, ramps and supportive beds |
Supplements are not regulated like drugs in the United States. Look for brands that follow quality standards, such as those carrying the National Animal Supplement Council (NASC) seal. See arthritis in dogs and senior dog care.
Safety Notes and Possible Side Effects
- Most dogs tolerate these supplements well.
- Mild stomach upset is the most commonly reported side effect.
- Glucosamine supplements may contain shellfish-derived ingredients, so check if your dog has allergies.
- Tell your vet about supplements so they can watch for interactions.
- Supplements don’t replace pain relief for dogs in pain.
Before You Buy
- Talk to your vet about your dog’s joint health.
- Choose based on budget and your vet’s advice.
- Give it consistently for several weeks.
- Track mobility changes.
- Keep up with weight management and exercise.
Tips for Using It
- Use the loading dose on the label for the first few weeks, if recommended.
- Give with a meal to reduce stomach upset.
- Keep a short weekly note on stiffness and activity.
Who It Suits
| Good fit if… | Consider something else if… |
|---|---|
| Your dog has early joint stiffness | Your dog is in obvious pain (see your vet for pain relief) |
| Your vet recommends a supplement | Your dog has a shellfish allergy (check ingredients) |
| You want a product with a quality reputation |
Alternatives to Consider
| Option | How it differs |
|---|---|
| Omega-3 fish oil | Some evidence for arthritis |
| Prescription joint diets | Formulated with omega-3s |
| Injectable joint medications | Prescribed by your vet |
When to Call Your Vet
Contact your vet if:
- Your dog limps, struggles to rise or avoids stairs
- Your dog seems painful when touched
- Your dog’s mobility gets worse despite supplements
Frequently Asked Questions
What’s the difference between Dasuquin and Cosequin?
Both contain glucosamine and chondroitin. Dasuquin also contains ASU, an extract from avocado and soybean oils. Dasuquin costs more.
Is Dasuquin better than Cosequin?
Some vets prefer Dasuquin because of the added ASU. There’s no definitive research showing one is better for every dog. Ask your vet.
How long does it take to see results?
Many vets suggest giving a joint supplement for at least four to six weeks before judging.
Are there side effects?
Most dogs tolerate them well. Mild stomach upset is the most common issue.
Can I give Dasuquin with pain medication?
Many dogs take both. Tell your vet about all supplements and medications your dog takes.
Are joint supplements regulated?
Not like drugs. Look for reputable brands and quality seals, such as NASC.
Can young dogs take joint supplements?
Some vets recommend them for active or large-breed dogs. Ask your vet.
Will joint supplements cure arthritis?
No. They may help support joint health, but arthritis is a long-term condition that needs a broader plan.
Pet Health Man is independent and isn’t paid by the brands we review. Product formulas, specifications and prices change, so check the current label or the manufacturer’s information before you buy.
This article is for general information only and isn’t a substitute for professional veterinary advice. If you’re worried about your pet’s health, contact your veterinarian or an emergency animal hospital.
