Fenbendazole is a benzimidazole-class anthelmintic (anti-worm drug) originally developed for deworming animals. It disrupts the parasites’ ability to absorb nutrients by inhibiting the polymerization of tubulin, a protein necessary for maintaining their cellular structure.

Fenbendazole 500 mg is a common dosage format used in both veterinary and experimental human contexts. One of the most recognized human-available versions is Wormentel, a brand that provides Fenbendazole for humans in a standardized, easy-to-dose tablet.