Indications: A Nutritional Source of Bio-available Sulfur. Active Ingredient: Each Ounce Contains: Methylsulfonylmethane (MSM)-------28,350 mg Directions: For an average 1,100 lb horse, feed 1 measure (10,00 mg) daily with the horse"s regular feed or as directed by your veterinarian. Feed others according to body weight, less for ponies and smaller horses, more for larger breeds. Caution: As with all food supplements, consult your veterinarian before starting any supplement program. Precautions: Keep out of reach of children. For equine use only. Do not feed to other animals intended for human consumption. Storage: Close container after each use. Store in a cool, dry place. Do not use if seal is torn or missing.