Fenben powder is a broad-spectrum anthelmintic that belongs to the benzimidazole class of drugs. It works by disrupting the parasites’ cellular structures and causing them to die. It is usually used to treat gastrointestinal nematodes, lungworms and certain tapeworms, but it is also sometimes prescribed as a preventive medication. It is available as a palatable flavoured liquid or powder that can be mixed with your dog’s food. It can be given to dogs of any age, including puppies.
It is recommended that you use this worming treatment as part of a routine deworming regimen, especially in puppies. A good schedule for this is once every six months, but talk with your vet about what schedule would be best for your pet’s situation. There are no known drug interactions, but it is always a good idea to let your veterinarian know about any vitamins, supplements or herbal treatments that you are giving your pet.
In a study of EMT6 cancer cells in vitro, high doses of fenbendazole reduced the clonogenicity and viability of the tumor cells and increased the rate at which they died. This effect was not influenced by radiation.
Fenbendazole is often prescribed in a compounded form by veterinary doctors, which means that it is not an FDA-approved drug. This is done if there is a reason that your pet cannot take an FDA-approved drug, such as if they are unable to swallow pills or have an intolerance to certain ingredients.