Used primarily as a topical antiparasitic agent in veterinary medicine, especially for cats and dogs. It effectively controls flea infestations by preventing the development of flea eggs and larvae. Also provides treatment and control of ear mite infections, which are common in pets. Additionally, it is effective against certain stages of heartworm larvae, making it a preventive treatment for heartworm disease. Its systemic action begins after absorption through the skin, distributing through the body to target parasites. Due to its long-lasting effect, it is typically administered once a month. Safe for use in a wide range of animals, including those that are pregnant or breeding.