horse wormer for cats

[Nancy Mitts]

Is it safe to use horse wormer (for tape worms) for cats  & how would you figure the dose?
Feral cat had kittens and they're growing up wormy. The roundworm cat stuff is cheap. the stuff for tape worms costs the same for one cat as a horse.

Nancy Mitts

"How many legs does a dog have if you call the tail a leg?
Four.     Calling a tail a leg doesn't make it a leg."

  -- Abraham Lincoln

 

[Mary Watkins]

No, it is not. 

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[teddy]

Even cheaper and non toxic is Diatomaceous Earth.  It kills parasites without harming the animal (or person).  I even use it on the ground to get ride of bugs!

On 11/20/2012 10:33 AM, Nancy Mitts wrote:

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[Susan E. Garlinghouse, DVM]

Sorry, no.  Horse dewormers are much more concentrated in both ivermectin and praziquantel, and a cat dose for ivermectin is calculated in micrograms per kilogram, not milligrams (a thousand-fold difference) as horses and other livestock species are. Its very difficult to accurately titrate down the dose to the right level, plus if you dosed .  Cats are quite sensitive to ivermectin toxicosis, and it can easily be fatal.  If you dosed the cat for the correct amount of praziquantel in the horse dewormer, the amount of ivermectin you'd also be delivering would kill the cat.

Sorry.

Susan Garlinghouse, DVM

[Barbara Moulton]

Opal - 7lb rat dog woke up blind and partially paralized this summer- horse related head injury with slow brain bleed or toxic exposure was the vet guesses and he said saw it all the time when little dogs especially got into some tasty horse pooh just after worming with flavored Ivermectrin We were able to rule out the worming as it had been weeks ago at the stable so when she ran under she must have been clipped- no yelp so I thought she was OK till she was limp in the morning- fabulous recovery- might still have some distance vision loss- she doesn't lazer track on thrown balls like she used to. --- On Tue, 11/20/12, Nancy Mitts <mit...@hotmail.com> wrote:

[SMW]

My 55 pound dog licked the used wormer that was in my hand. I didn't think anything of it, it was an ivermectin. She woke up the next morning blind. Took weeks to recover and a trip to the doggy eye specialist.
Sharon (Vizsla is now locked up when we worm)

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[Jocelyn Payne]

Thank you for passing this on! I had no idea and my chihuahua loves the poop! 

Sent from my iPhone

[Kathy Sherman]

Some breeds of dog are more sensitive to the ivermectin than others.
Here's an interesting article about it.
http://www.equisearch.com/horses_care/dogs-horses-and-ivermectin-horse-journal/

Kathy

On Nov 20, 4:39 pm, Jocelyn Payne <jocelynmpa...@gmail.com> wrote:
> Thank you for passing this on! I had no idea and my chihuahua loves the poop!
>
> Sent from my iPhone
>

[Susan E. Garlinghouse, DVM]

It's true that some breeds are more sensitive, but there are also numerous dewormers other than just ivermectin out there that can cause serious problems in small animals. I have one patient that was intermittently showing hindlimb weakness bordering on paralysis, then she'd eventually sorta get over it. It was driving me crazy trying to figure it out. It finally turned out that the owner's wife was feeding her mini horse Strongid C and there was enough residue in the poop to paralyze a chihuahua.

A lot of the older insecticides that contain organophosphate are notorious for causing toxicity problems, as is a currently used moxidectin (Quest).

About the only dewormer commercially available for horses that can be safely used in small animals when properly dosed is Panacur (fenbendazole). That has a very wide margin of safety, but it won't get tapeworms, you still need praziquantel for that. You might be able to use pyrantel pamoate as well, but that's already readily available for dogs and cats OTC.

Susan Garlinghouse, DVM


Sent from my iPad