A rodenticide composition is described along with a method for using the same to exterminate rodents. The composition features a mixture of a dehydrant, a composition for producing endogenous gas, a dietary emulsifier, a hypercalcemia promoter, and a source of cellulose. After consumption of the composition by a rodent, the dehydrant and source of cellulose cause the rodent to experience dehydration, while the endogenous gas produced by the composition causes bloating and increased digestive stress. The dietary emulsifier and hypercalcemia promoter cause digestive stress, which reduces the rodent's desire to feed and quickens dehydration and death. Once the rodenticide composition is prepared, it may be placed in areas frequented by or infested with rodents so as to kill the rodents once they consume the composition. One or more flavorings, coloring agents, and weather resistant materials may also be added to the composition.
