QUEST Gel Moxidectin Dewormer & Boticide for Horses & Ponies, 0.5-fl oz syringe

$15.48 Autoship Price
(-5%)
  • Keep saving 5% on every order
  • Get deliveries on your schedule
  • Skip, change, or cancel anytime
$16.30 Chewy Price
($32.60 /fl oz)
Promo, New Customers Only: Spend $49+, Get $20 eGift Card + Free Shipping with code: WELCOME

In Stock
FREE 1-3 day delivery on first-time orders over $35
Free 365-day returns

No interest if paid in full in 6 months on PayPal purchases of $149+. .

About This Item

Details

  • Broad-spectrum dewormer targets encysted small strongyle larvae and bots, large strongyles, roundworms, pinworms, hairworms and stomach worms.
  • Contains active ingredient moxidectin.
  • Gel formula dissolves on the tongue to make deworming easier.
  • 1 syringe treats a horse up to 1,500 pounds.
  • Approved for use in breeding mares and stallions.

Ingredients

Instructions

Convenient Parasite Treatment

The Quest line offers convenient parasite treatment. Just one dose of Quest Gel (moxidectin) or Quest Plus Gel (moxidectin/praziquantel) treats and controls small strongyles (including encysted forms), large strongyles, bots, pinworms, hairworms, and stomach worms.

Long-Lasting Protection with Twice-a-Year Treatment

Twice-a-year treatment for long-lasting parasite suppression with Quest and Quest Plus. Just one dose of Quest in the spring and one dose of Quest Plus in the fall may be the only parasite treatment needed all year long for most horses. The Quest line of products are the only ones that effectively treat encysted small strongyles and are safe for breeding mares, stallions, and horses six months old or older.

Why Choose Quest and Quest Plus?

Trust Quest's 25+ year legacy for safe, effective parasite control.

  • The gel formula dissolves quickly on the tongue.
  • The Quest series come in a SURE-DIAL syringe for easy and accurate dosing.
  • In a study, one dose of Quest was nearly twice as effective in reducing small strongyle egg counts as a five-dose treatment of fenbendazole. [1]

About Zoetis

At Zoetis, we’ve supported the health of animals for over 70 years. As the makers of Quest, we’re proud to offer trusted deworming protection for horses, helping defend against internal parasites and supporting overall wellness. From seasonal care to year-round confidence, we’re here for you and your horse every step of the way.

Shop Zoetis

IMPORTANT SAFETY INSTRUCTIONS

Do not use Quest Gel or Quest Plus Gel in foals less than 6 months of age or in sick, debilitated and underweight horses. Do not use in other animal species, as severe adverse reactions, including fatalities in dogs, may result. Consult your veterinarian for assistance in the diagnosis, treatment, and control of parasitism.

Reference:

Mason ME, Voris ND, Ortis HA, Geeding AA, Kaplan RM. Comparison of a single dose of moxidectin and a five-day course of fenbendazole to reduce and suppress cyathostomin fecal egg

counts in a herd of embryo transfer-recipient mares. J Am Vet Med Assoc. 2014;245. 1.

QST-00264

Questions & Answers

2 Customer Questions


Can it be used for donkeys both full size and miniature ones?

Answer by ChewyDec 30, 2022
This product is intended for horses and ponies.

Does this kill tapeworms in cats? If so is it safe to give them?

Answer by ChewyJul 11, 2021
This dewormer is designed for use in horses and ponies only. It is not suitable for cats.
4.9
Rated 4.9 out of 5 stars
217 Ratings

57 Customer Reviews



Rated 5 out of 5 stars
By Thomas on Dec 26, 2025

Doves

I just want to be sure its okay to use on doves?

I just want to be sure its okay to use on doves?


Rated 4 out of 5 stars
By Blakley on Jun 16, 2025

Gel formula is a life saver!

For the past 12 years of owning my QH he has always thrown a fit with paste wormers, but never knew it was the formula! I decided to try the gel as one last attempt

For the past 12 years of owning my QH he has always thrown a fit with paste wormers, but never knew it was the formula! I decided to try the gel as one last attempt to help make worming easier for him and me, this gel really did the trick! Reduced the fight by 80% for sure! And love that both seasonal wormer in one place!


Rated 5 out of 5 stars
By sandy on Nov 8, 2025

Apple Flavor

Horses take this dewormer in their grain with no issues.

Horses take this dewormer in their grain with no issues.


Rated 5 out of 5 stars
By Magdalena on Sep 4, 2025

Great dewormer.

Quest is a great dewormer. Glad is for 1500lb weight so it's enough for my draft cross.

Quest is a great dewormer. Glad is for 1500lb weight so it's enough for my draft cross.


Rated 5 out of 5 stars
By Sharon on Oct 23, 2025

Easier than paste

Was easier to squirt in mouth, great rotational wormer

Was easier to squirt in mouth, great rotational wormer


Rated 5 out of 5 stars
By Sharlie on Jun 26, 2025
Top 250 Contributor

Great rotational dewormer

This is a great product to have in your rotation. The best part is, they give you a guide to follow which product to use and when. Very easy to administer.

This is a great product to have in your rotation. The best part is, they give you a guide to follow which product to use and when. Very easy to administer.


Rated 5 out of 5 stars
By Debby on Apr 23, 2025

My horse accepted the gel better than the paste!

Arrived in great condition and my horse actually liked the flavor and the gel was easier to swallow than the paste. I will definitely order this again. The price

Arrived in great condition and my horse actually liked the flavor and the gel was easier to swallow than the paste. I will definitely order this again. The price was good and it arrived on time.


Rated 5 out of 5 stars
By elizabeth on Nov 20, 2025

Wormer

Worked well no issues

Worked well no issues


Rated 5 out of 5 stars
By Robert on Oct 18, 2025

Great Price

Used for worming my hens

Used for worming my hens


Rated 5 out of 5 stars
By Sheila on May 30, 2025

Quest horse dewormer

Easy to use. Horses don't like the taste. Wish is was flavored for horses

Easy to use. Horses don't like the taste. Wish is was flavored for horses