|Cydectin Pour-On, 500ml Fort Dodge Moxidectin Pour-On for Beef and Dairy Cattle. Antiparasitic Contains 5 mg moxidectin per mL. For treatment of infections and infestations due to internal and external parasites of beef and dairy cattle. Controls gastrointestinal roundworms, lungworms, cattle grubs, mites, lice, and horn flies in cattle. Use 0.5 mg per 2.2 lbs of body weight. Zero-day withdrawal before slaughter, Cydectin is oil based and remains fully effective under wet conditions.