Pyohex® Medicated Shampoo for DogsPyohex Medicated Shampoo for Dogs Pyohex Medicated Shampoo is an aid in the treatment of superficial dermatitis associated with infections by Staphylococcus intermedius in dogs. Features: Formulated to remove dirt and scale and kill cutaneous micro organisms which primarily or secondarily cause dermatitis. Chlorhexidine gluconate, the active ingredient in Pyohex Medicated Shampoo, has a broad spectrum of antibacterial activity against most bacteria