This symbiotic combination of prebiotics and probiotics has been proven to safety repopulate the GI tract with beneficial bacteria, significantly decrease populations of unfriendly bacteria such as Clostridium spp., and relieve acute diarrhea, usually within 24 hours. Contains four strains of probiotics (Enterococcus faecium, Lactobacillus acidophilus, Bacillus coagulans, Bacillus clausii) that are micro-encapsulated and not affected by gastric or biliary secretions. Prebiotics (FOS and MOS) help eliminate pathogenic bacteria from the GI tract. Also contains Vitamins B1, B2, B3 and B6. Recommended for use in cats/kittens, dogs/puppies, rabbits and ferrets.