Ivermectin Sheep Drench is a ready-to-use, free-flowing solution of ivermectin. Ivermectin Sheep Drench provides treatment and control of adult and fourth-stage larvae of the following parasites: Gastrointestinal Roundworms - Haemonchus contortus, Ostertagia circumcincta, Trichostrongylus axei, T. colubriformis, Cooperia curticei, Nematodirus spathiger, N. battus, and Oesophagostomum columbianum; Lungworms - Dictyocaulus filaria; and all the larval stages of Nasal Bot - Oestrus ovis. It also provides treatment and control of adult forms only of the following Gastrointestinal Roundworms - Haemonchus placei, Cooperia oncophora, Strongyloides papillosus, Oesophagostomum venulosum, Trichuris ovis, and Chabertia ovina.