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

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$19.98 Chewy Price
($39.96 /fl oz)
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About This Item

Details

  • Broad-spectrum dewormer targets tapeworms, encysted small strongyle larvae and bots, large strongyles, roundworms, pinworms, hairworms and stomach worms.
  • Contains 2 active ingredients—moxidectin and praziquntel.
  • Gel formula dissolves on the tongue to make deworming easier.
  • One 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. Quest Plus Gel includes a second ingredient to treat and control tapeworms.

Long-Lasting Parasite Suppression

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 is the only option demonstrated effective against encysted small strongyles and is safe for breeding mares, stallions, and horses six months of age 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 Plus, 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.

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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

5 Customer Questions


Can you give this to donkeys?


How often should I use this dewormer?

Answer by ChewyJul 09, 2021
One syringe treats a horse up to 1,500 pounds.

How do you get the tip of injection off?

Answer by ChewyMay 04, 2022
To remove the cap, you can twist it off.

For the Mg/kg in the instructions, is that milligram per kilogram?

Answer by ChewyAug 03, 2025
The ingredients are milligrams (MG) per kilograms (KG).

4.9
Rated 4.9 out of 5 stars
507 Ratings

108 Customer Reviews



Rated 1 out of 5 stars
By Robbie on Jan 15, 2026

Delivery time falsely advertised

The delivery time for my item was said to be one to three days. It took four days. I had to buy the item elsewherel locally, as I was heading on vacation on that

The delivery time for my item was said to be one to three days. It took four days. I had to buy the item elsewherel locally, as I was heading on vacation on that fourth day. The two small items arrived in a an oversized box. Not environmentally, friendly! This is my first time ordering from chewy and probably will not order again.


Rated 1 out of 5 stars
By Blayne on Dec 14, 2025

Chewey’s Staff is horrible

Said the quality of customer service people at Chewey has. One didn’t do anything he said he would do (that’s Joe) then the next idiot couldn’t even pronounce Zimectrin!!

Said the quality of customer service people at Chewey has. One didn’t do anything he said he would do (that’s Joe) then the next idiot couldn’t even pronounce Zimectrin!! And her listening skills were absolutely horrendous!! Never ordering from here again!! Chewey Do Better!!!!


Rated 5 out of 5 stars
By Marianne on Nov 21, 2025

30% off

I wanted to buy this at the Chewy booth at Equine Affaire, but there wasn’t any. The Chewy employee gave me a coupon fir 30% off to order it on line.

I wanted to buy this at the Chewy booth at Equine Affaire, but there wasn’t any. The Chewy employee gave me a coupon fir 30% off to order it on line.


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

Fast shipping speed!!!

It’s one of the few deworming tubes that can accommodate a 1500 pound horse! You don’t have to buy 2 tubes to treat one horse!

It’s one of the few deworming tubes that can accommodate a 1500 pound horse! You don’t have to buy 2 tubes to treat one horse!


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

Dewormer

It's that time of year to deworm. He does not mind the taste and he is easy to medicate.

It's that time of year to deworm. He does not mind the taste and he is easy to medicate.


Rated 5 out of 5 stars
By Jeff on Nov 21, 2025

Excellent price

Best price I could find on this brand of horse wormer. Shipped and received quickly.

Best price I could find on this brand of horse wormer. Shipped and received quickly.


Rated 4 out of 5 stars
By Melanie on Jan 1, 2026

Good product reasonable price

It’s wormer no horse likes it but it’s necessary

It’s wormer no horse likes it but it’s necessary


Rated 5 out of 5 stars
By Melinda on Oct 31, 2025

One product - Great coverage

Great product. Appreciate full spectrum coverage including tapeworm.

Great product. Appreciate full spectrum coverage including tapeworm.


Rated 4 out of 5 stars
By Kelsie on Sep 11, 2025

Good delivery time

The product is standard and price increasing like everything else these days. It worked

The product is standard and price increasing like everything else these days. It worked


Rated 5 out of 5 stars
By Mary on Oct 8, 2025

Great

I love that I don’t have to go shop for it cause it comes to my doorstep

I love that I don’t have to go shop for it cause it comes to my doorstep