Protexin is a Multistrain Pro-Biotic that is safe for use on all animal and over long period of time. We have had many clients use Protexin to great effect with horses, dogs and chickens with digestive issues resulting in malabsorption of food. The article below is written by Dr James Chin and gives some insight into his clinical research into the product. What I love about this product is that it can do so much good, and you can't do any harm.