Proved to effectively control infections and to protect cattle from reinfection with Cooperia oncophora and Ostertagia ostertagi for 28 days; and Cooperia punctata for 35 days after treatment. For treatment and control of various species of gastrointestinal roundworms, lungworms, eyeworms, grubs, lice, horn flies and mange mites. Controls 33 stages of internal and external parasites with a single, convenient application. Provides 7 day persistent activity against horn flies. Weatherproof formulation won’t wash off. Safe for use on any age or class of beef cattle, including pregnant cows, calves and bulls and dairy replacement heifers up to 20 months of age. Dosage is 1 mL (5 mg doramectin) per 22 lb body weight applied topically. 45 day pre-slaughter withdrawal.