Panacur Wormer

This is a deworming medication that uses fenbendazole, or FBZ, as a drug that treats hookworms, roundworms, and whipworms. However, it is not effective against the most common kinds of tapeworms. It can also kill giardia and some other random parasites in dogs. You have to use it for several days for it to work, because a one-time use won't be enough to kill the worms. Fenbendazole is a drug that attaches itself to proteins that are used by the worms, damaging the cells of worms, but not mammals. This kills the worms without affecting your pet. 

Is it safe? Are there any side effects?

Generally it's safe, but some animals have vomiting or nausea as a result of using it. It is generally safe to use during pregnancy under a vet's supervision, while many other dewormers are not. You may also see dead worms in the pet's stool while using it.


General Flea Tipsheet

pictures of fleas

flea bites

Pet Questions

Pet Product Reviews


Can it be used on cats?

It's generally a product made for dogs, but in some cases vets have prescribed it for cats. That's pretty rare, however - the best bet is to rely on your vet's advice, but be aware that this is a product designed and tested for dogs.

Where can I buy it?

Panacur Granules (1 lb Jar)

Panacur Granules (1 lb Jar)

By Hoechst. Broad-spectrum wormer effective against roundworms, hookworms, whipworms and Taenia tapeworms. Simply mix with food. One jar will worm 1,500 total pounds. Jar comes with a dispensing kit. Safe in pregnant dogs, heartworm positive dogs and puppies. 1-pound jar. For dogs over four weeks old. Daily dosage: 1/4 tsp. per 6 lbs. or 1 tsp. per 25 lbs. for three consecutive days and provides approximately 22.7 mg per pound of active ingredient fenbendazole. A prescription is required for this product. Click here for details

Back to Pet Medications Page

Back to Flea Control Guide Main Page

Text copyright 2005-2006 and may not be reproduced without consent. This is not the official web page of any of the products listed on this site, this is a review page created by an individual. It is not by a vet, and is meant to be informative and not to substitute for a vet's advice - always consult a vet if you suspect a health problem.