Cephalexin is an antibiotic prescribed to treat a range of bacterial infections. Cephalexin is used to treat skin and ear infection, bladder infection, respiratory tract infection, and bone infections in dogs. Cephalexin kills bacteria by disrupting the growth of their cell wall and causing it to rupture. Cephalexin should only be used for bacterial infections and not viral or parasitic infections. Cephalexin is available on Vetito veterinary pharmacy in oral solutions or capsules.