Panacur Dosage Chart for Dogs: Risks, Side Effects, Dosage, and More

Written by Amber LaRock
Updated: October 4, 2023
Share on:


Has your veterinarian prescribed Panacur to your dog with intestinal parasites? You likely have questions about this deworming medication and how it works, so let’s break down everything you need to know about Panacur below!

What Is Panacur?

Veterinarian giving a Veterinarian giving a chihuaha a pilla pill

Panacur is a deworming medication that has been formulated specifically for use in veterinary medicine.

© Tikhonova

Panacur is a medication used to treat a variety of intestinal parasites in pets. The active ingredient in Panacur is fenbendazole, and this medication has been used to treat parasites in humans and animals for many years. Panacur has been formulated specifically for use in veterinary medicine.

Is Panacur Safe For Dogs?

Panacur is safe for use in dogs when following your veterinarian’s instruction for administration. Different versions of fenbendazole can be found in some pet stores and feed stores, but we do not advise offering these products without instructions from your veterinarian. Panacur must be delivered at a specific dosing range and frequency to be effective in treating intestinal parasites, and only your vet team will know what’s best for your dog’s case.

Amy Nicole Lewis, a veterinarian with Worldwide Veterinary Services told A-Z Animals that Panacur must be given at an appropriate dose for the pet’s weight, as well as an appropriate amount of days based on the severity of the dog’s worm burden. Given any less may result in insufficient treatment of the parasite.

Why Do Dogs Take Panacur?

Panacur is used to treated a variety of intestinal parasites in dogs. Some of the parasites that Panacur can effectively treat in dogs include:

  • Roundworms
  • Hookworms
  • Whipworms
  • Some species of whipworms
  • Giardia (when used alongside metronidazole)

The above intestinal parasites can be diagnosed with a fecal test performed in your vet’s office. Your veterinary team just needs a small sample of fresh stool to examine under a microscope, and they will search for any evidence of parasite eggs in the stool. Your vet will then prescribe an appropriate deworming medication to treat their parasitic burden.

How Do I Give My Dog Panacur?

Pill popper for dogs

Panacur can be prescribed in the form of granules that can be sprinkled on food, or in the form of a liquid suspension.


Panacur can be prescribed in the form of granules that can be sprinkled on food, or in the form of a liquid suspension. Panacur should be given once daily for at least three days, but some dogs with heavy worm burdens take it once daily for up to seven days. Some vets will also prescribe a second round of Panacur to be given two weeks later to make sure their parasite infection was indeed treated.

Panacur must be given until it’s completed and consecutively each day. Skipping days or missing doses could lead to insufficient treatment of the intestinal parasites. We suggest giving your dog their dose of Panacur with a small meal to prevent an upset stomach.

What Is The Dose Of Panacur In Dogs?

Before we offer the standard dose of Panacur for dogs, we should state again that you should not give your dog Panacur without veterinary approval. With that in mind, there is a standard Panacur dose that most veterinarians follow.

The standard dose of Panacur for dogs is 22.7 mg per pound of body weight. It should be given once daily for anywhere from three to seven days consecutively, and a second round of treatment may be prescribed to be given again two weeks later. You should never skip days, miss doses, or stop treatment altogether without speaking to your veterinarian first. This could result in insufficient treatment of the intestinal parasites.

Does Panacur Have Any Side Effects In Dogs?

Panacur is a safe deworming medication that comes with very few side effects, but some dogs have experienced GI upset when taking the medication. Some of the most common side effects include diarrhea, vomiting, lethargy, and a decreased appetite. However, side effects can be challenging to identify since these GI symptoms often accompany an intestinal parasite infection.

Pet parents should be aware that their dog’s diarrhea could worsen in the first 48 hours after taking Panacur due to the intestinal parasites dying. Their diarrhea should improve within 72 hours of starting the Panacur, and it should completely resolve within 5 to 7 days.

How Do I Get Panacur For My Dog?

Panacur is a prescription medication that can be found at your vet’s office. You may be able to find some versions of fenbendazole at a pet store or a feed store, but we always suggest reaching out to your vet for dosing guidance before offering it to your canine companion.

The photo featured at the top of this post is © JOKE_PHATRAPONG/

Share on:
About the Author

Amber LaRock is a writer at A-Z Animals primarily covering topics surrounding pet health and behavior. Amber is a Licensed Veterinary Technician with 12 years of experience in the field, and she holds a degree in veterinary technology that she earned in 2015. A resident of Chiang Mai, Thailand, Amber enjoys volunteering with animal rescues, reading, and taking care of her two cats.

Thank you for reading! Have some feedback for us? Contact the AZ Animals editorial team.