Mebendazole (Mebenvet, Vermox) is a common type of dewormer used to treat a number of parasitic worm infestations, including nematodes and some cestodes. It works by keeping the worm from absorbing sugar (glucose), so that the worm loses energy and dies. Mebendazole is the same drug given to humans for pinworm infections.
- Chickens: 50 mg/kg as a single oral dose to control nematodes.
- Waterfowl: 5-15 mg/kg orally once a day for 2 days to control gapeworms.
- In feed:
- Chickens, Turkeys, Guineafowl: 60 ppm for 7 days.
- Waterfowl: 120 ppm in feed for 14 days.