Chemical group: benzimidazole
Mode of action: Binds to tubulin subunit and interferes with microtubule formation.
Pharmacokinetics: Poorly absorbed from the gut, most leaves the dog in the feces as fenbendazole, some is metabolized to oxfendazole, probably in liver, and returns to gut in bile. Totally eliminated in 48 hours.

Parasite Targets: Ascarids, hookworms, Trichuris vulpis, Aelurostrongylus abstrusus, Capillaria sp., Strongyloides sp., Filaroides sp., Taenia sp., Paragonimus kellicotti, Giardia sp.