Is Panacur Poisoning Your Pooch?

Veterinarians often prescribe panacur for dogs to kill internal parasites claiming it is absolutely safe. Is it? What about side effects? Natural Alternatives? 

I know I made a rhyme to grab your attention in the title. I couldn't help myself.

It's the dog health coach in me.

We're so used to prescription and over the counter stuff we no longer question what they are or the adverse affects they have on dog health.

Panacur is the brand name for Fenbendazole, a poison safe for your dog to swallow to kill parasites including roundworms, hookworms, whipworms, and tapeworms.

Haven't you ever wondered if it kills something inside your dog, how could it be perfectly safe?

It is a common and accepted practice to use fenbendazole for the removal of other parasites in dogs including Giardia.

I've had several dog owners contact me because it did not work for Giardia. I wish I could have helped them prevent all the months of dog diarrhea naturally. It could have been so simple.


Why Question the Use of
Panacur for Dogs?

The first thing I look at for any dog medication is - Is it used for humans?

That may sound silly but if it's not deemed safe for humans, why would I give it to my dog?  

I know for a fact, there are drugs for people which were taken off the market because of their side effects. Little things such as permanent kidney damage or liver damage. Then the drug makers simply offered them for our pets! Ingenious.

A good example would be Rimadyl. Even after it switched to a dog drug, the commercials for Rimadyl were eventually dropped because they did not want to list death as a side effect as the FDA required.


Panacur Side Effects

The following is copied from a download I got from Doctors Foster and Smith website.

I chose them because they sell panacur and a host of other things online and make a lot of money doing so. They are owned by Petco. The point here is that they are less likely to state negative side effects since it should affect sales.

I found it interesting that it first states the possible side effects are rare and the dog may vomit.

But right below that it states:

If your pet experiences an allergic
reaction to the medication or has a
reaction to the dying parasites, signs may
include facial swelling, hives, scratching,
sudden onset of diarrhea, vomiting,
shock, seizures, pale gums, cold limbs, or
coma. If you observe any of these signs,
contact your veterinarian immediately.

Maybe it's just me but why would I risk my dog having seizures or going into a coma? Especially when there are herbs that do the job without any side effects at all?

The truth is most people don't see much in the way of side effects but then you can't see your dog's organs can you? Have you ever added up all the poisons you give your dog on a regular basis? There's stuff for fleas, ticks, heartworms, intestinal worms and still while on those products your dog might get Giardia which doesn't respond all that well to Panacur.

Add some vaccines, a few drugs and you wonder why your dog barely makes it to middle age.


Prevention - A Better Way


The best way to prevent parasites is pretty simple and natural. I suggest human products which are constantly tested for purity and potency. 

Not only do they help keep our dogs parasite free but they improve health at the same time.


  • Black Walnut capsules for large dogs or    Black Walnut Liquid Extract for small to medium dogs is not only antiparasitic, it's antiviral, antiseptic, and antifungal. (Think yeast infection.) Purifying and oxygenating the blood, it also improves all bodily functions, the immune system and makes the body less attractive to fleas.
  • High Potency Garlic has antibacterial properties that don't have side effects like antibiotics. It's also antiparasitic, antiviral, antiseptic and antifungal. Combined with black walnut in the right dose it also improves health. For more on garlic if you have concerns, see Garlic for Dogs. Actual ingredients in these chlorophyll coated tablets are: Garlic bulb, broccoli flowers, turmeric root, red beet root, rosemary leaves, carrot root, tomato fruit, cabbage leaves, orange and grapefruit bioflavonoid extracts, and hesperidin.

Note: Because herbs are food rather than pesticides, they are added to a meal on a regular basis.

Knowing the right products along with the right doses for your dog makes all the difference in the world. After you place your order, you will get dosage instructions for your dog.


Medium/large Dogs (30 pounds and over):


Black Walnut . . .  . . . . .       $20.50
High Potency Garlic . . . . .   $36.30
Tax +Shipping & Handling.  $13.33

Total                                    $70.13


Dog's Age/Breed/Weight


Small/Medium Dogs (5 to 30 pounds):

Black Walnut Liquid. . .  . . .   $21.45
High Potency Garlic . . . . . .   $36.30
Tax +Shipping & Handling.    $13.40

Total   . .  . . . .  . . . . . . .         $71.15


Dog's Age/Breed/Weight



Panacur for Giardia

If you have used Panacur/Fenbendazole and it didn't do the trick (a common problem), head on over to my page on Giardia in Dogs because you need specific help and understanding how to get rid of this beast.

If your dog has intestinal flatworm, the affects on the body are the same as giardia. (Diarrhea, usually with mucus and some blood due to intestinal damage.)


› Panacur