Command Blocks contain the active ingredient bromadiolone, a single-feed, second generation anticoagulant, providing excellent control in less time after a lethal dose is consumed. This all-weather formulation reduces the risk of ruined bait, while food grade ingredients provide an irresistible formulation for effective control in most environments, whether for maintenance or during clean out, for indoor and outdoor control of rats, mice, and other non-commensal rodents.