Adequan equine I.M. 500mg/5ml 7 x 5ml vials box is recommended for the intramuscular treatment of non-infectious degenerative and/or traumatic joint dysfunction and associated lameness of the carpal and hock joints in horses. It is a brand of polysulfated glycosaminoglycan (psgag). Package contains 7 vials. Adequan® equine I.M. (polysulfated glycosaminoglycan) is the only fda-approved treatment proven to relieve symptoms of non-infectious degenerative osteoarthritis, to stimulate cartilage repair and reverse the joint disease process. -injectable arthritis care for horses -good for post-surgery treatment -helps control non-infectious degenerative or traumatic arthritis Adequan increases the thickness of joint (synovial) fluid, reduces inflammation, helps produce healthy joint fluid and increases the production of cartilage.