CONTRAC Rodenticide, with the active ingredient, Bromadiolone, is a fresh tasting, highly compressed pelleted bait that holds up well, particularly in adverse or moist conditions. It is an excellent clean-out and maintenance bait to control mice and rats, including warfarin-resistant Norway rats. CONTRAC comes in pre-measured polyglassine place pacs that keep pellets fresh and free from contamination until rodents open the place pacs with their gnawing. The slender place pacs can be used in hard-to-reach locations or in bait stations placed along rodent runways. The versatile place pacs can also be used in burrows as needed. Bait shyness is not a problem with CONTRAC because mortality occurs a few days after a toxic dose is consumed. The antidote, Vitamin K1 is readily available.