Quest® Plus Gel, 1-dose

Item #F7Q3


Quest® Plus Gel, 1-dose

Quest® Plus Gel Horse Dewormer contains 2% Moxidectin + 12.5% Praziquantel. Use in horses and ponies six months of age and older. Read More

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Featured Advice from Our Experts

What You Should Know About Horse Worms: Treatments, Causes & Info

Common types of worms and a description of each plus what to use to deworm when (printable rotation chart in link at bottom.)


Quest® Plus Gel Horse Dewormer

2% Moxidectin + 12.5% Praziquantel. Use in horses and ponies six months of age and older. One administration of the recommended dose rate also suppressed strongyle egg production through 84 days. Treats up to 1,250 lbs.

Quest® Plus Gel Horse Dewormer is used to aid in the control of:

  • large and small strongyles
  • encysted cyathostomes
  • ascarids
  • pinworms
  • horse stomach bots
  • tapeworms

View manufacturer and/or label information


  • Brand: Zoetis
  • Form: Gel
  • Active Ingredient: Moxidectin, Praziquantel

Reviews (9)

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  1. 5.0 out of 5 stars

    "p.s. use ivermectin first for a wormy horse"

    this product really kills the worms, so if you do not use another wormer first, your horse can have an overload of dead worms and it can cause colic. Great product. Use with intelligence.

  2. 5.0 out of 5 stars

    "Great Product but use with Caution"

    Great product. Kills the encysted worms that other wormers do not. BUT do not use with pregnant horses. It will sometimes cause loss of the fetus.

  3. 5.0 out of 5 stars

    "Good Wormer"

    Gave it to both my horses-- other then not liking the taste and not eating for 30 minutes, they were fine. I worm my horses monthly.

  4. 4.0 out of 5 stars

    "Good product"

    I wormed the whole barn with quest that's 12 horses. All who have been being wormed on a regular basis. It worked really well. I run a rescue, so some of the horses that come in here are really badly infected, I do worm with ivermectrin first. My horses all are looking really well, lots of dapples!!! I would carefully worm with this product, but tropical climates really sometimes need something this strong.

  5. 5.0 out of 5 stars

    "great stuff"

    I have used quest since it was first introduced with never a problem. I usually am vaccinating 10 horses a year from foals to aged. I do use ivermectin on a new horse first, now, as I have read of some problems

  6. 5.0 out of 5 stars

    "Important to give at the correct time of year"

    It's important to give this wormer in late summer before the strongyles encyst, and in early spring before the encysted worms emerge. Otherwise you could have a mass die off and a sick horse. Do your research

  7. 3.0 out of 5 stars

    "Tastes NASTY"

    This stuff might work, but unless you have a very submissive horse you'll never know because you'll never get it swallowed. Tastes incredibly NASTY.

  8. 1.0 out of 5 stars


    Used Quest Plus for 1st time on my HEALTHY, SOUND 18 y.o. Paso Gelding yesterday.Kept him confined to paddock to check manure results,etc. Found him Down & Rolling few hrs later. Bowel sounds Dull. Walked him for hrs. Buted him for pain. Eventually multiple huge Liquid followed by Gigantic Sloppy Wet bowel movements. Vet had been called said I Never use or Advise anyone to use it. Has had to many Bad Results NEVER AGAIN !!!!

  9. 5.0 out of 5 stars

    "Best on the Market"

    I absolutely SWEAR BY this wormer. Unlike Ivermectin, it is largely under-utilized because it is a little more expensive, but put it in rotation even once or twice a year and you can see a HUGE difference. I have heard that if you give it to a very wormy horse, it can cause colic (hasn't happened to me, but I'd imagine too many worms alll dying at once can cause stomach problems) so if I get a new horse that I know has a large worm load, I worm first with Ivermectin and follow 2 weeks later with Quest Plus and the worm-belly disappears within days. Really a GREAT product!!!

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