Why Choose Cosequin? For over 25 years, Cosequin has provided joint health support for dogs, cats, and horses. Made in the U.S.A. with globally sourced ingredients, Cosequin is the #1 veterinarian recommended retail joint health supplement brand. It contains the ingredients FCHG49 Glucosamine Hydrochloride and TRH122 Sodium Chondroitin Sulfate, which help support your dog's cartilage. Cosequin , Cosequin is a branded suite of nutritional supplements—also called “nutraceuticals”—produced by Nutramax Laboratories, a manufacturer of supplemental health products for both humans and pets. Cosequin is intended to address arthritis and stiffness of the joints and ligaments in dogs and cats., Pet owners frequently express concern about their dog’s joint health, which is why there are so many products on the market designed to help keep our dogs’ joints strong and healthy. Cosequin is one of the top vet-recommended products for supporting joint health in dogs., , , .