ZENTEL SUSPENSION 20ml Albendazole is a broad spectrum anthelmintic for the treatment of single or mixed infections of: Enterobius vermicularis (pinworm or threadworm), Trichuris trichuria (whipworm), Ascaris lumbricoides (large roundworm), Necator americanus (Hookworm), Strongyloides stercoralis, Taenia spp. (tapeworm.