Vetrin, with aspirin as the active ingredient, relieves pain and reduces inflammation in dogs. Use for the treatment of injuries, muscle strain, or following surgery to treat pain and stiffness. Safe and effective for chronic conditions such as arthritis and hip dysplasia. Chewable roast beef-flavored tablets are for canine use only. Use 100 mg tablets for small to medium breeds, 325 mg for large to giant breeds. This bottle of Vetrin Chewable Canine Aspire contains 100 tablets.