ridecamp@endurance.net: Daily dewormers

Daily dewormers

Patricia Dowling DVM (dowling@skyway.usask.ca)
Wed, 19 Mar 1997 15:29:56 -0800 (PST)

I'm going to put on my internist/clinical pharmacologist hat
to reply to this type of ancedotal information about the use
of Strongid C:

"I am speaking with no authority whatsoever, but everything
I have
heard regarding daily wormers has been negative. I'd have
to do
some research to be specific, but it just strikes me
everytime I
read about these wormers. I am inclined to say it creates a
deficiency of some sort. The statement you made regarding a
mild
poison on a daily basis is frightening. Think about that.
Ask
some veterinarians, not just one. Use common sense. Would
you do
this to yourself?"

Pyrantel pamoate is one of the safest dewormers for
veterinary and HUMAN medicine. We use Strongid as a dewormer
for puppies and kittens. So would I do this to myself? The
answer is yes. Why is Strongid liquid banana flavoured?
Because it is originally (and still is) a human product -
for treating pinworms in children. When I first heard these
reports blaming the use of Strongid C for causing anemia and
other problems in horses, I mentioned it to Dr Joseph
DiPietro, one of the world's leading equine parasitologists
- and he was incredulous that anyone would link pyrantel
pamoate with causing anemia or other systemic problems in
horses. The chemical compound is essentially not absorbed
from the horse's gastrointestinal tract. I have checked
Medline and all the other veterinary medical databases and
the FDA's adverse drug reaction reports, and there are no
documented reports of adverse effects from the use of
Strongid C. If you would like to review the entire Freedom
of Information Summary (ie, the data that was submitted to
the FDA to grant approval to the product) check out:
http://www.cvm.fda.gov/fda/infores/foi/140819.html

Do I use Strongic C on my own horses? No, but I own four
adult geldings on a lush pasture. It is a very expensive
dewormer and my horses have minimal exposure to parasites.
Have I prescribed Strongid C for clients? Most definitely. I
have found it very effective and cost effective in cases of
chronic colics, especially in the southeastern US, in
situations where there were large numbers of horses on
heavily parasite infested pastures. It makes an incredible
difference in feed efficiency.

So do use common sense, examine the evidence, and consult
with your veterinarian on your horse's parasite management
needs. And if you really do feel that your horse has had an
adverse reaction to a drug product, get your veterinarian to
file a report with the FDA.

Trisha
************************************************************
Trisha Dowling, DVM, MS, Diplomate ACVIM & ACVCP
Associate Professor, Veterinary Clinical Pharmacology
Western College of Veterinary Medicine

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