TRADE OR OTHER NAMES: The active ingredient deltamethrin (NRDC 161 and RU 22974) is found in a variety of commercial insecticide products. Trade names for products containing deltamethrin include Butoflin, Butoss, Butox, Cislin, Crackdown, Cresus, Decis, Decis-Prime, K-Othrin, and K-Otek (1, 83, 86, 61, 20).