Nutri-Vet 300mg Aspirin for Medium & Large Dogs, 75ct w/Collar Address Carrier Aids in the temporary relief of pain in dogs. BONUS: Includes waterproof aluminum address-pill container you can attach to your dog's collar! Easy-to-feed liver flavored chewables with less stomach upset. Helps ease soreness & inflamation related to aging & arthritic joints. 1-Year Date-Code Guarantee! Made in the USA.