VetriScience GlycoFlex Stage III Senior Joint Support Dog Tablets, 120 count
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Clinically Proven GlycoFlex III Hip and Joint Supplement for Dogs represents the third stage of VetriScience Laboratories’ comprehensive joint support program designed to maintain comfort and mobility through all stages of your dog’s life. Recommended by veterinarians for over 30 years, this formula offers higher levels of glucosamine, MSM and perna canaliculus for superior joint care. Glyco Flex III tablets are suggested for active and competitive dogs to maintain top form, but also provide support for dogs showing signs of aging and discomfort as well as those with limited mobility after orthopedic surgery.
Key Benefits- This formula offers high levels of glucosamine, DMG, Perna canaliculus and MSM, proven ingredients that help build cartilage, cushion joints and manage inflammation
- Suggested for active and competitive dogs to maintain top form, or to provide support for dogs showing signs of aging and discomfort as well as those with limited mobility after orthopedic surgery
- Clinically proven to increase hind leg strength in 4 weeks
- Palatable real chicken flavor tablets are easy to digest and absorb: great for pets that may find chews too dense or that have easily upset stomachs.
- Recommended and trusted by veterinarians for over 30 years! Finally, a joint supplement you can trust
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Item Number57609
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LifestageSenior
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Breed SizeSmall Breeds, Medium Breeds, Large Breeds, All Breeds
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Food FormSupplement
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Product FormChewable Tablet
Active Ingredients: (Per Tablet) Glucosamine HCl (Shrimp and Crab) (1,000 mg), Methylsulfonylmethane (MSM) (1,000 mg), Perna Canaliculus (Glycomega Brand Green Lipped Mussel) (600 mg), N,N-Dimethylglycine HCl (D mg), (100 mg), Dl-Alpha Tocopheryl Acetate (Vitamin E) (50 Iu), Calcium Ascorbate (Vitamin C) (30 mg), Manganese (as Manganese Amino Acid Chelate) (10 mg), Grape Seed Extract (5 mg), L-Glutathione (2 mg), Selenium (as Sodium Selenite) (0.002 mg).
Inactive Ingredients: Brewers Yeast, Cellulose, Dicalcium Phosphate, Natural Imitation Roast Chicken Flavor, Silicon Dioxide, Stearic Acid (Glycomega Is A Trademark of Aroma New Zealand Ltd.).
Initial feeding period (4 - 6 weeks):
- Up to 30 lbs: 1/2 tablet
- 31 - 60 lbs: 1 tablet daily
- 61 - 100 lbs: 2 tablets daily
- 101 lbs and over: 2 1/2 tablets daily
Maintenance period:
- Up to 30 lbs: 1/2 tablet every other day
- 31 - 60 lbs: 1/2 tablet daily
- 61 - 100 lbs: 1 tablet daily
- 101 lbs and over: 1 1/2 tablets daily
Why should I include vitamins & supplements in my pet’s diet?
Most commercial pet foods include baseline vitamins and nutrients, but some may not have the adequate amount to suit your pet’s exact health needs. Like in humans, vitamins and supplements can help support your pet’s long-term health, regulating everything from digestion to muscle growth. Consult your veterinarian to determine the best vitamins and supplements for your furry friend.
How often should I give this supplement to my pet?
It is recommended to give the suggested dosage based off your pet’s weight. Please refer to the Feeding Instructions tab and consult with your veterinarian for more information.
Is this supplement safe to use with the medication my pet is currently taking?
If your pet has a medical condition and is taking other medication, we recommend consulting with your veterinarian to ensure that this supplement is safe to use.
My pet is allergic to certain ingredients, will this product be safe to use?
For a complete list of ingredients, click on the 'Nutritional Info' tab, next to the 'Description' tab, just under the product photos. If you are unsure about the safety of this product for your pet, we recommend consulting with your veterinarian.
Does this product come in other product forms?
For a complete assortment of products by the manufacturer of this supplement, click on the link next to the item name at the top of the page. You can also find an assortment of supplements across all product forms on our page.

Clinically Proven Joint Support
GlycoFlex gives your dog comprehensive joint support for mobility, flexibility and everyday comfort in the form of a delicious treat that she'll actually want to eat. Available in both tablets and bite-sized chews, GlycoFlex is recommended by veterinarians to provide joint support at every stage of your pet's life.


Formulated to Support a Lifetime of Healthy Joints
GlycoFlex 1 s a great proactive joint supplement for growing and active dogs.
GlycoFlex 2 has higher levels of glucosamine and is recommended for adult or maturing dogs.
GlycoFlex 3 is an extra-strength formula for dogs in need of maximum joint support.
GlycoFlex Classic is an introductory hip and joint health supplement that supports proper joint and connective tissue growth and function in dogs of all ages.
GlycoFlex Plus provides advanced support to help cushion joints, promote cartilage building and alleviate discomfort caused by normal daily activities.
Time-Tested Ingredients
GlycoFlex uses time-tested active ingredients to provide support for joint mobility, flexibility and overall comfort. Perna canaliculus, or green-lipped mussel, is found in every formula to help maintain healthy connective tissue. Glucosamine helps build healthy cartilage, and MSM is included as a necessary ingredient for forming connective tissue in the joints.

About VetriScience
As the makers of GlycoFlex and an extensive line of pet supplements, VetriScience Laboratories is a leader in the pet health industry. For over 40 years, VetriScience has led the way by providing exceptional and innovative supplements created for the health and well-being of companion animals. They are committed to using only pure and highly researched ingredients to produce quality products that are safe and effective.

Customer Reviews
94% Recommend
94% of reviewersrecommend this product
You've Already Reviewed This Item
219 Reviews
Showing 1-10 of 219 Reviews
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works amazingly!
By elliesmom2020 on Mar 2, 2021
My senior Yorkie hurt her back in November 2020. She hurt her back before. Our vet gave her meds to keep her comfortable while her back healed. In order to keep her back and other joints in tip top shape I bought this. She’s gotten it every night since I got it from chewy and Ellie has had an amazing recovery. She’s back to running and being her crazy self. I’m very thankful I found these
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Excellent ! CHEWY HAS IT!
By KimB on Feb 20, 2021
I could not find this product anywhere- and of course, Chewy had it!! My old dog, Annie, swears by this stuff for her double TPLO knee arthritis! She was so worried when we ran low, and could not find it, CHEWY TO THE RESCUE!!
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Buy these not the chewy ones
By Dogsrule on Feb 8, 2021
My dog has been on these for years as she had a bad leg from people kicking her when I rescued her. A few months ago she fractured a tooth, had the tooth removed and I bought the chewy ones. They made her stomach upset/throw up. Different ingredients. Back to these, now I just crush them for her.
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Amazing joint support!
By kitdragon2000 on Jan 4, 2021
I have been a vet tech for 10 years and I Swear by this stuff! when it works, it Works!! It has helped all my older animals feel younger, thats included a 10+ year old dachshund, a 13+ year old cat, my 12 year old sheltie, and 9 year old dachshund you can tell the difference with all of them on days when its missed. if you have an older animal do not hesitate adding this to their daily routine! I get the tablets because i am able to split them and it lasts longer, but the chews are great too, Plus most animals (Including my cat!) would eat the chews without issues.
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Would never go without this!
By TandC on Jan 25, 2021
First off, chewy is usually the only company that has this in stock and delivers insanely fast! Second, I have two older dogs, one with a torn ACL and bad hips and both do so well on this! We actually see a difference in them! We even started our puppy on this to hopefully assist her with growing strong and maintaining. Buy this, you won’t regret it!
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So far, so good
By Lucia on Jan 1, 2021
We’ve only been on these for a couple of months but so far they seem to have helped my 13 yo mini Doxie. I rescued her a year ago and she seemed to be a little stiff and not so easy to stretch in the mornings and now it seems better for her. We’ll keep up with the pills and hope she keeps improving.
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My dog doesn’t like the taste
By Joan on Jan 7, 2021
I picked this one for the extra strength but my dog does not like the taste in both small pieces or grinding into a powder. I have do hide it in turkey which adds to expense and makes it less convenience.
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AMAZING SUCCESS
By nilajean on Dec 2, 2020
My veterinarian prescribed these and I paid three times the amount from his office (although I adore him). This is the same product and it is wonderful. My 12 year old Shih-Poo went from hardly walking to running.
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Seems to be working well
By Boston on Sep 6, 2020
Our dog, a 9yr old cockapoo, with 2 back surgeries from blown out disc's, needs to take this supplement to keep her active. The tablets are large so we break them up and crush them before adding to one of her daily meals. It is similar in size to other similar supplements we've used. She tolerates it well, would eat it as is, but I've noticed when we have given it to her whole or even in two pieces that it is not totally broke down by her stomach. This was the case with any other supplement brand we have used. So crushing the tablet has resolved that. To watch her give chase to the neighborhood squirrels, you'd never guess she has had two very major (And expensive) back surgeries.
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Best product for seniors
By Cali on Feb 9, 2021
i have had my mastiff on this product for 3 years now and it works wonderful.