Nutramax Cosequin DS Plus with MSM Chewable Tablets Plays an important role in maintaining joint function for dogs #1 veterinarian recommended retail joint health supplement brand. The recommended initial administration period is four to six weeks; however, some dogs may respond sooner With MSM, a naturally occuring, organic, sulfur-containing compound. Cosequin maintains optimal joint function to increase joint mobility Supports mobility for a healthy lifestyle in dogs of all ages, sizes, and activity levels Please read all label information on delivery