The main ingredients of the compound permethrin pyriproxyfen spot-on solutions are permethrin, fipronil, and pyriproxyfen. It has obtained certification as a Class II new veterinary drug in China and is the country's first topical triple-ingredient anthelmintic spot-on solution for dogs. It is indicated for the prevention and treatment of tick, lice, and flea infestations on the dog's body surface, exhibiting efficacy against eggs, larvae, and adult parasites, while also providing A1-grade strong repellency against mosquito bites. Suitable for use in dogs as young as 8 weeks old, it starts working within 5 minutes, requiring only one application for both prevention and treatment, offering long-lasting protection for a full month. It is safe, highly effective, and non-irritating.