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  • Efficacy of ivermectin in i...
    Klei, T R; Torbert, B J; Chapman, M R; Turk, M A

    American journal of veterinary research, 1984, 1984-Jan, Volume: 45, Issue: 1
    Journal Article

    A controlled test method was used to evaluate the efficacy of injectable micelle and oral paste formulations of ivermectin (22,23-dihydroavermectin B1) against 8-week-old Strongylus vulgaris larvae in experimentally infected pony foals. The dosage level of the drug in both formulations tested was 0.2 mg/kg. Ponies were euthanatized and necropsied 5 weeks after treatment. Based on the recovery of live vs dead S vulgaris from mesenteric arteries, both formulations were greater than 99% effective. Increased weight gains and marked reductions in the severity of arterial lesions were observed in treated ponies.