Prosamine is a nutritional supplement formulated to supply the building blocks used in joint connective tissue, including cartilage, tendons and ligaments, for dogs and cats. Each chewable tablet combines glucosamine HCl and glucosamine sulfate with hydroxyproline, an amino acid involved in collagen formation, along with calcium, manganese, vitamin C and zinc. The tablets are flavored to be palatable and can be given whole as a treat or crumbled and mixed into a pet's regular food. Daily tablet counts are based on the animal's body weight, with an initial higher dose typically used for the first several days before switching to a standard maintenance amount. As with many nutritional supplements, a noticeable response can take several weeks to develop and will vary by individual animal. The product ships in a sealed bottle and is intended for supplemental or intermittent feeding rather than as a sole diet component.