Easy-to-feed supplement for consistent nutrition and seasonal fly control. You can count on our research-backed formula to provide supplemental nutrition, fly control, and gastric support in a palatable form designed for multi-horse convenience. High-quality ingredients such as alfalfa, rice bran, and flaxseed are paired with cutting-edge technology to help ensure consistent intake and nutrient delivery. The formula also includes ClariFly® Larvicide. This feed additive passes through the horse and is expelled in the manure where house and stable flies lay their eggs, preventing the emergence of adult flies. Feed with confidence knowing Purina® EquiTub? with ClariFly® is manufactured in an ionophore-free facility and has been tested at the Purina Animal Nutrition Center and in field trials around the country.