Examination of 19 fecal samples showed positive results for nematodes. It was classified as a single and mixed infestation 58.0% and 42.1% respectively. The percentages of infestation with Strongylus spp, Oxyuris equi and Parascaris equorum were 31.58%, 15.75%, 10.52% respectively. Administration of a single dose of mixture of ivermectin and closantel (0.05 ml/kg body weight) revealed a significant reduction in average egg count in feces of the treated horses with both single and mixed infection. Efficacy of mixture of ivermectin and closantel for was 100% in removing eggs of the Parascaris equorm and Oxyuris equi and 99.42% for Strongylus spp at 14 days post-treatment. The preparation was also effective in removing larvae of Gastrophilus nasalis.