Vivaldis Endewor Natural Enzyme Based Deworming Supplement for Dogs and Cats 1X10 Tablets is an all-natural, safe deworming solution for pets. Its unique systemic vegetative enzyme formulation helps balance the gastrointestinal system and effectively eliminate parasites, unlike other deworming products with generic and synthetic compounds that can be ineffective. Each tablet effectively kills and expels all kinds of parasites, acting on all stages of the life cycle.