This report was prepared by the 54th meeting of the Joint FAO/WHO Expert Committee on Food Additives which was dedicated to the evaluation of veterinary drugs. It contains reports on 9 compounds: cyhalothrin; cypermethrin; dicylanil; flumequine; ivermectin; lincomycin; melengestrol acetate; permethrin; trichlorfon. The reports cover chemical identity, properties, use, pharmokinetics, metabolism, tissue residues and their depletion, and analytical methods for the substances. This publication is meant for regulatory authorities, veterinary drug researchers and other interested professionals. Two other reports prepared at the meeting will be published. The report of the meeting will be published in the WHO Technical Report Series and the toxicological monographs will be no. 45 in the WHO Food Additive Series.