My Big Scare Using Quest Dewormer

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My Big Scare Using Quest Dewormer

This is a discussion on My Big Scare Using Quest Dewormer within the Horse Health forums, part of the Keeping and Caring for Horses category
  • My horse has a zero fecal egg count for 5 years
  • "quest wormer"

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    03-29-2012, 01:36 AM
My Big Scare Using Quest Dewormer

Hey All-

I gave both Shadow and Kody Quest Dewormer (Moxidectin) this evening... Kody was fine, but Shadow went into shock about 15 minutes after administering it. Scared the pants off of me!

Shadow started stumbling all over the place and broke into a sweat. He began to salivate uncontrollably and his lips swelled. The vet came quickly, thank goodness!

Shadow is on the mend now, but I feel like an idiot for giving my horses this Dewormer! My vet said that he absolutely does NOT recommend this Dewormer as he has seen a lot of bad reactions with it.

Needless to say, my vet and I had a lengthy discussion about my deworming schedule. He recommends having fecal egg counts done twice per year (spring & fall). If the horses' tests show that they are low egg shedders, then deworming would not be necessary. If their tests indicate high egg counts, then he reccomends deworming with ivermectin.

Do any of you use a deworming schedule like that?
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    03-29-2012, 01:47 AM
Yes, I do... However, not to contradict your vet here, but horses really should get at LEAST one dewormer a year to catch any tapeworms or bots or some other worms that slid by the fecal egg test. I like to do Ivermectin the fall (usually after the first frost) and Equimax in the spring. As well as a fecal egg test in Spring and Summer.
    03-29-2012, 01:51 AM
Ive been told for over a decade not to use Quest because sooo horses have had bad reactions to it. Luckily, I've stayed away from it. Pyrantol or Ivermectin for us, we rotate every 8 weeks.

Im considering doing a fecal in spring/fall and not deworming unless its necessary. Too many species of worms are evolving and becoming resistant to the dewormers that are being used. (thank you microbiology)
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    03-29-2012, 08:20 AM
I've heard you really have to be careful with the dosing of that stuff, make sure you really know how much your horse weights.
Also, from experience, horse wormer is not something you let your dog get into it.
I made the mistake of worming my guys in the cross ties that are in the yard, and I dropped some, didn't think anything about it. My mini dottie got into it, blinded him temporarily and a night stay in hospital, and I was using cheap ivermetic.
    03-29-2012, 08:27 AM
Quest is a great dewormer, but one that you really have to be careful you don't give them too much. I strongly disagree with not deworming at all, because the fecal egg counts miss tapeworms and bots. I deworm twice a year.
Trinity3205 and Foxhunter like this.
    03-29-2012, 08:33 AM
My first time 30 years, I am having fecal egg counts done as I write! My vet recommended it to me because he said worms are resistant to my old standby worming rotation..
He said now they just fecal sample to avoid over medicating the horse.
It cost $15.00 a test, not much more than a tube of dewormer!
    03-29-2012, 08:36 AM
I've never had a problem with Quest... o.0
Or known anyone else too.. unless its slightly different over here... who knows.
    03-29-2012, 08:37 AM
I have always just wormed twice a year. But just started the fecal egg counts. I worm with the Ivermec and the Equimax for the Tapeworms as well. I have used Quest in the past without issues.
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    03-29-2012, 08:37 AM
Yeah and its even cheaper if you think that you only have to deworm twice a year instead of 6 times a year =]
COWCHICK77 likes this.
    03-29-2012, 01:41 PM
I only worm spring and fall. My guys fecal floats are always clean, but tapeworms will not be seen most times unless the load is very large so I worm those two times to be on the safe side.

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