OralX Rebound 3 An equine specific microbial culture used after deworming, stress, antibiotic use, and even chemical additives. It is designed to help restore and maintain the desirable microorganisms in the horse's gut. The microencapsulation preserves the viability during storage. Rebound 3 can be used during antibiotic administration. 34g tube (3 full doses) . Ingredients: Lactobacillus Acidophilus, Bifidobacterium Thermophilum, Bifidobacterium Longum, Streptococcus Faecium, Lactose Enzymes, Dried Whey, Dextrose, Vegetable Oil, Silicon Dioxide, Potassium Sorbate as a Preservative. Directions: Administer the entire contents onto the back of the horse's tongue. Newborn Foals: 10 grams at 24 hours; repeat at 48 and 72 hours. Weaning: 10 grams at weaning; then at 72 hours. Horses: 10 grams after worming; 8 to 10 hours prior to anticipated stress or condition changes. Can be repeated as needed.