DectoGard (doramectin topical solution) helps control 33 parasites in cattle and larval stages for broad coverage against internal and external parasites in beef cattle with one application. The first generic doramectin topical solution approved by FDA for treatment and control of gastrointestinal roundworms, lungworms, eyeworms, grubs, lice, horn flies, and mange mites in cattle. Delivers a long duration of activity and protection against reinfestations in major cattle lice species – up to 77 days for biting lice and 42 days for sucking lice. Contains a weatherproof formulation so varying weather conditions, including rainfall, do not affect the efficacy. Apply at 1 ml for each 22 lbs. of body weight. Apply topically along the mid-line of the back from the withers to the tailhead. 45 day slaughter withdrawal.