Rataquill is a rodenticide bait that kills rats and mice in a single bite. It contains the anticoagulant brodifacoum at a concentration of 0.005%. Rataquill is effective against various rodent species through ingestion, causing internal hemorrhaging and death within two days without alerting other rodents. It is manufactured in Colombia and effective even for rodents resistant to other anticoagulants. Rataquill comes in pellet, wax block, and gel forms and is for use in various settings like homes, farms, and industries.