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(for veterinary information only)
AVAILABLE IN
ORAL SUSPENSION
AND GRANULES
The care of animals has always included the management of internal parasites. As technology has progressed, the medications developed have become more and more broad in the spectrum of parasites they can eradicate. Fenbendazole is a member of the benzimidizole group of anti-parasite medications which makes it a relatively broad spectrum product.
Fenbendazole (often abbreviated “FBZ”) is used in both large and small animals. In dogs, it is useful against roundworms, hookworms, and the more difficult to treat whipworms. It is effective against the Taenia species of tapeworm but not against the Common tapeworm, Dipylidium caninum. It is also effective against giardia (an intestinal protozoan which is contagious to both humans and pets) as well as several species of lungworm and even some flukes.
Fenbendazole is rarely required for feline use but can certainly be used safely in the cat. Fenbendazole is not approved by the FDA for use in the cat, however.
When a pet has a chronic diarrhea and a cause cannot be found through testing, it is common to have the animal take fenbendazole for several days in a row as a general broad spectrum dewormer with the idea that most parasites of significance will be removed by such treatment even if they have escaped detection by testing.
Some animals experience vomiting/nausea after deworming.
There are no significant drug interactions in small animal use.
Fenbendazole is considered safe for use in pregnancy in all species.
Treatment is necessary for 3-5 consecutive days for most parasites. Treatment may require a second course depending on which parasite is being treated.
Page last updated: 1/29/08
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