Internal and external dewormer for cats. This product is made of the same raw material of international big brand - Selamectin. The excipients are upgraded, two adopt the standard of human medicine excipients, and one adopts imported excipients from abroad, which is a higher standard of ingredients to ensure the product has lower side effects and is safer. It can be used in pregnant cats and kittens over 8 weeks old, and can also be used in conjunction with vaccines without worrying about immune interference.