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This is an archived Horseadvice.com Discussion. The parent article and menus are available on the navigation menu below:
HorseAdvice.com » Horse Care » Worms, Deworming, Parasite Control » Deworming Schedules »
  Discussion on Complications with all-in-one powerful wormer
Author Message
Member:
rbounds

Posted on Saturday, Jul 12, 2008 - 6:41 pm:

I have heard that the powerful all-in-one wormers aren't wise to use with a horse that is older or has not been on an aggressive de-worming regiment. The wormer is so powerful that it kills off all of the worms making the horse swell up then the horse develops ulcers and can create big problems. I don't use the all-in-ones but I wanted to know if this was possible or rumor?
Member:
scooter

Posted on Sunday, Jul 13, 2008 - 7:13 am:

R Don't know what "powerful" wormer you are talking about, but if you mean the ones that also get tapeworms they aren't harmful. If your horse has never been dewormed for tapes it could possibly cause a problem. I double dosed mine with strongid first, then went to the "powerful" wormer. Of course always follow instructions. Quest wormer is a little more weight sensitive and you should know your horses weight. I use equimax and have never had a problem.
Moderator:
DrO

Posted on Sunday, Jul 13, 2008 - 9:14 am:

As DianeE notes we are not sure which dewormers you are talking about so it is difficult to judge your question. However we have information on dewormers, indications, and contra-indications at Horse Care » Worms, Deworming, Parasite Control » Overview of Deworming.
DrO
Member:
ajudson1

Posted on Sunday, Jul 13, 2008 - 9:27 am:

If in doubt, I'd start with a half dose of the all in one, what ever you mean by that, and then do a normal dose a couple of weeks later. I've done that with a horse that was severely underweight and had no history of worming and she was fine. I doubt you'd have a problem unless the horse had NEVER been wormed. I do know of a horse that I used to own who was never wormed and then wormed and died from colic. But in that case, the horse had not been properly cared for many years.

Follow the advice DrO gives in the articles and you should be fine.
Member:
rbounds

Posted on Sunday, Jul 13, 2008 - 11:41 am:

Ok, I'll try to find one of the stories I read on it and post it. Like I said, I don't use them but I wanted to know if it was possible.
Member:
rbounds

Posted on Sunday, Jul 13, 2008 - 7:10 pm:

Sorry I've only found one web page. I believe I also saw it on a forum but it could have came from this same page. It does not list the name of the product though.
https://www.sunsethalters.com/wings.php
Moderator:
DrO

Posted on Monday, Jul 14, 2008 - 9:37 am:

The above story conjectures such a relationship RBounds but with a necropsy we won't know. I think the take home message should be that older horses may need more frequent deworming with high quality dewormers to keep their parasite burden low.
DrO
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