Dewormer amount - The Horse Forum
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post #1 of 19 Old 06-19-2012, 05:50 PM Thread Starter
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Dewormer amount

This is probably a silly question :). My horse is 782lbs. What happens if I give him the full amount of paste from the tube? Say for a 1200lb horse?
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post #2 of 19 Old 06-19-2012, 05:55 PM
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Nothing, but if you feel better about giving a more accurate amount then do that. To me it is beyond the "iffy" weight so to speak.
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post #3 of 19 Old 06-19-2012, 05:56 PM
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Nothing. It takes a lot more than that to get anywhere near an overdose. Our mares are all in the 900+ to 1100 lbs range and we always use the whole tube.
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post #4 of 19 Old 06-19-2012, 06:20 PM
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I was under the impression that certain types of dewormer were more dangerous in regard to overdosing?
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post #5 of 19 Old 06-19-2012, 06:59 PM
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Dewormers are not all the same. Whether it is safe or not would depend largely on what particular dewormer is and how much you are giving.

"Dewormer" is a very large category. Before I went saying "oh its fine" potentially risking my horse harm- I would find out WHICH dewormer it is, what the main active ingredient is as the dewormer, and go from there.
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post #6 of 19 Old 06-19-2012, 07:02 PM
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Originally Posted by verona1016 View Post
I was under the impression that certain types of dewormer were more dangerous in regard to overdosing?
Yes, Quest is one that should be accurately weight dosed.
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post #7 of 19 Old 06-19-2012, 08:44 PM
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This is the info I found...

Moxidectin has been the subject of controversy and for good reason. It is the only horse wormer that is capable of killing the above larvae in a single dose, which is a very impressive feat. CAUTION: Its liability is that the overdose tolerance threshold is far less than other wormers; 5 times the standard dose can cause significant damage to your horse. Whereas it may be difficult to give an adult horse an overdose 5 times the standard dose, it's extremely easy to make this mistake when worming a foal. As such, at no time would I recommend using this wormer on foals or weakened horses.
The most popular Moxidectin-based wormer is Quest.

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post #8 of 19 Old 06-19-2012, 09:13 PM
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Only a few different wormers are dangerous to overdose with. Most others have either a x10 health warning rate, meaning that you'd have to severely overdose for anything to happen. I'd read the warning labels on the tube and look the brand up if I were you. We use Safeguard and it actually has a reading on the tube that says what a safe amount to use is, when you should contact a vet, and symptoms of overdose on it.

I'd really only be worried if you have a wormer with Moxidectin or a Mixidectin derivitive/compound in it, but its good to check just in case.

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post #9 of 19 Old 06-19-2012, 10:30 PM Thread Starter
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I used strongoid paste (pyrantel) this time. I usually hand my wormer to someone standing next to me to administer :) but wanted to do it myself this time. I wasn't so confident in my aiming/handling abilities, and I wanted to make sure if I got too much in there it wasnt the worst thing in the world. Apparently gorilla didnt care one bit, and didnt move when I stuck it in the corner of his mouth and shot it in. I got 900lbs in. Thank you guys for the replies, i'm glad im more informed now!
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post #10 of 19 Old 06-19-2012, 10:36 PM Thread Starter
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I've heard zimectrin gold is one to be careful with too (not that one shouldn't be careful with all of them...), so is the 'ivermectin' category generally more dangerous than the others? Quest is ivermectin, right?
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