STP Pellets are a supplemental source of vitamin B12 for horses in a palatable cherry-flavored formula containing yucca extract and devil’s claw extract. Research has shown yucca and devil’s claw extracts help to relieve pain and inflammation related to arthritis, osteoporosis, and performance-related injuries. A safe, natural, and affordable alternative to Bute with a cost-to-benefit ratio that is unbeatable. Completely natural so prolonged use is not likely to result in gastric upset or ulcers. Feed 1 oz. daily. Not for pregnant mares.