Used primarily as an anthelmintic in veterinary medicine, it effectively controls parasitic worms in dogs and cats. Commonly found in monthly heartworm preventatives, it targets larvae of heartworms and helps prevent infestations. Also effective against intestinal parasites such as hookworms and roundworms. Often combined with other actives like praziquantel to broaden spectrum of activity. Administered orally, usually in flavored chewable tablets, making it easy to dose in pets.