Formulated using naturally derived ingredients, RatX works from the inside out to exterminate rats, then dries them out after death to reduce odor by as much as 90%. Once ingested, active ingredients in the pellets coat the rats stomach lining, blocking all messages from the stomach to the brain. This causes rats to stop wanting water, leading to eventual dehydration and death. Place these easy-to-use pellets around landscaping, near livestock or poultry housing, or under buildings or garden structures. RATX Pellets 25lb Bag A new FIFRA 25b rodenticideAdditional information: Formulated for Indoor & Outdoor Use Naturally Derived Rat & Mouse Control Safe for Use Around Livestock & Pets When Used as Directed Perfect for both professional & DIY use EPA minimum risk pesticide Patented mechanical kill system requires no conventional poisons Protected by 3 U.S. and 2 Global patents, other patents pending