Our universal complex probiotic tablets for dogs and cats contain vitamin B2, selenium yeast. It can support your pet's digestive health and reduce discomfort. Its use is simple: feed directly or mix with diet, pets under 5 kg (wear - 2-5 tablets/day at 5 months old), pets 5-10 kg (5-12 months old)4-6 tablets/day, pets >10 kg (adults)4-8 tablets/day. And can help improve the immunity of pets, enhance resistance.