Oxfendazole is a benzimidazole anthelmintic manufactured for use in control of intestinal parasites in cattle including roundworms, Giardia spp and Tritrichomonas spp. Oxfendazole is the sulphoxide metabolite of fenbendazole.
Oxfendazole reaches peak blood levels more slowly than older benzimidazoles, thereby maintaining effective concentrations for a longer time in both the serum and the intestinal tract. After oral administration, only half of the dose is eliminated after 6 days, indicating a fairly high degree of sequestration, probably within the gastrointestinal tract.
Oxfendazole is effective against nematodes (roundworms, hookworms and whipworms), cestodes but not trematodes.
Recommended dose rate is 5 - 10 mg/kg bodyweight.
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