Fenbendazole, sold as Panacur, is a broad spectrum benzimidazole anthelmintic used to treat and control parasitic worms that live in the gastrointestinal tract. It is a very safe medication and is well tolerated by dogs of all ages and sizes.
It works by binding to beta-tubulin in microtubules, which disrupts their formation and thus starves the parasites by blocking their ability to produce energy. It also has a detrimental effect on the development of helminth eggs, which ultimately destroys them. It is effective against giardia, roundworms, hookworms, whipworms and the tapeworm genus Taenia (but not the more common Dipylidium caninum, the dog tapeworm).
This dewormer is easy to administer: simply mix granules into your dog’s food. This prevents stomach upset and ensures that the medication is fully ingested. It is available in a variety of formulas including granules, liquid, chew and capsule forms. Talk to your veterinarian about the best dewormer for your pet’s specific needs.
Like any anthelmintic, this drug can cause side effects. In most cases, these are minor and go away on their own. However, higher doses may be associated with a severe allergic reaction called anaphylaxis, which can include hives, facial swelling, difficulty breathing and collapse. If your dog experiences any of these symptoms, seek immediate veterinary attention. fenbendazole powder