ATOVABRUT 250MG is a veterinary tablet containing Atovaquone 250mg, an antiprotozoal medication used in dogs and cats to treat parasitic infections like tick fever (Babesia gibsoni) and Pneumocystis canis infections, and Cytauxzoonosis (Cytauxzoon felis) in cats and kittens. It works by inhibiting the energy production and growth of these parasites.