How Does Panacur C Work?

Has your dog been acting lethargic lately? Has he been suffering from diarrhea and other signs of gastrointestinal distress? Is his coat dull or brittle? These all may be signs that your pet is infested with parasitic worms. It can be difficult to identify parasites as the culprit behind your dog’s health problems but, once diagnosed, it can be easy to treat them and the problems they cause.

There are many treatments available for the different parasites that may afflict your dog, but each offers different protections. One over-the-counter solution that treats some of the most common types of worms is Panacur C Canine Dewormer. Panacur C works to treat hookworms, roundworms, tapeworms, whipworms, and more with easy-to-administer granules.

To treat your pup, simply mix the proper dose of granules in with your pet’s food for three consecutive days. Though the dog food and granule mixture may require added moistening to ensure that your pet consumes the full dose, three doses administered over three days is all your pet needs! To help you better understand how this product works, we’ve outlined the way Panacur C eliminates parasites below.

What is Fenbendazole?

Fenbendazole, the active ingredient in Panacur C, is an organic compound that is used to treat a wide variety of gastrointestinal parasites. Due to the unique composition of fenbendazole, it’s more prone to interaction with the cells found in parasites than those of your dog. The compound binds to tubulin, a structural protein commonly used by intestinal parasites used to absorb glucose. This disruption inhibits the parasite’s ability to produce energy, paralyzing the parasite until it dies or is expelled from your pet.

Due to this method of action and its limited interaction with your pet’s system, fenbendazole is typically very safe for pets and is lauded as an extremely effective treatment for many intestinal parasites. Furthermore, fenbendazole quickly exits your pet’s system, preventing complications; this benefit, however, also requires pet owners to administer multiple doses to ensure that any infestation is completely eradicated.

Among those parasites that are most readily treated by fenbendazole are roundworms, hookworms, tapeworms, whipworms, and giardia. Because of its versatility, Panacur C is recommended in a wide variety of cases and can be used both to treat puppies as young as 6 weeks of age and to treat dogs that are pregnant.

Fenbendazole is also well-known for being a cost-effective solution to deworming needs. In addition to its relatively low cost, it also has a shelf-life of up to 3 years. This shelf-life is useful to most dogs, as most veterinarians recommend deworming adult dogs as often as two times each year for their entire lives. Though side effects are rare with Panacur C and other fenbendazole products, they do occur in approximately 1% of dogs.


Did you want to look at alternatives for dog deworming? We recommend comparing Panacur C against our list of best dog dewormers.


1Vetinfo (2012) Treating Canine Parasites with Fenbendazole for Dogs. Retrieved from

2Junquera, P. (November 10, 2014) FENBENDAZOLE, anthelmintic for veterinary use on CATTLE, SHEEP, GOATS, PIG POULTRY, DOGS and CATS against roundworms and tapeworms. Retrieved from

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