Elanco, Cydectin Cattle Pour-On Dewormer, 500 MlProduct Description For the treatment and control of gastrointestinal roundworms, lungworms, grubs, sucking and biting lice, mites and horn flies in beef and dairy cattle. Weatherproof formula allows for flexibility to treat without the worry of the dewormer washing away. Cattle parasites can cause a host of problems in cattle from reductions in milk production, reproductive performance and growth rate to increased disease susceptibility. This can