Equest Oral Gel, 18.92 mg/g, Oral Gel for Horses and Ponies
Active ingredient: Moxidectin
Form
Gel
Species
Manufacturer
Zoetis UK Limited
VMD MA No.
42058/5142
What it's used for
. Strongylus edentatus (adults and visceral stages) . Triodontophorus brevicauda (adults) . Triodontophorus serratus (adults) . Triodontophorus tenuicollis...
Full indications, dosage and side effects ↓The prescription itself has a price. See what practices near you charge for a consultation and the written prescription fee.
Paying less for Moxidectin
-
1
Ask your vet for a written prescription
They must provide one on request. Under the CMA Order the fee is capped at £21 from 2027.
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2
Fill it at a registered online retailer
The CMA found online pharmacies 50–60% cheaper than practice dispensing on common medicines — typically £200–£300 a year.
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Prescription required
Your vet must provide a written prescription on request. You can then purchase from any licensed online retailer.
Equest Oral Gel, 18.92 mg/g, Oral Gel for Horses and Ponies — SPC Details
Source: VMD Summary of Product Characteristics (SPC). Last updated 27 Mar 2026.
. Triodontophorus brevicauda (adults)
. Triodontophorus serratus (adults)
. Triodontophorus tenuicollis (adults)
. Cyathostomum spp.
. Cylicocyclus spp.
. Cylicostephanus spp.
. Cylicodontophorus spp.
. Gyalocephalus spp.
. Parascaris equorum (adult and larval stages)
. Oxyuris equi (adult and larval stages)
. Habronema muscae (adults)
. Gasterophilus intestinalis (L2, L3)
. Gasterophilus nasalis (L2, L3)
. Strongyloides westeri (adults)
. Trichostrongylus axei
The veterinary medicinal product has a persistent efficacy of two weeks against small
strongyles. The excretion of small strongyles eggs is suppressed for 90 days.
The veterinary medicinal product is effective against (developing) intramucosal L4
stages of small strongyles. At 8 weeks after treatment, early (hypobiotic) EL3 stages
of small strongyles are eliminated.
syringe.
Each syringe treats a 700 kg horse.
Bodyweight and dosage should be accurately determined prior to treatment.
Underdosing could result in ineffective use and may favour resistance development.
Use of a scale or weight tape is recommended to ensure accurate dosing.
Dosing instructions
Before the first dose, hold the syringe with the capped end pointing to the left and so
that you can see the weight measurements and tick marks (small black lines). Set the
syringe to zero by moving the dial ring so the left side is set at the first full black mark
and depress the plunger, safely discarding any paste that is expelled.
To dose the product, hold the syringe as previously described. Each tick mark relates
to 25 kg of bodyweight and to 10 mg moxidectin. Turn the dial ring until the left side
of the ring lines up with the weight of the animal.
AN: 02102/2023 & 02107/2023
Do not use in cases of hypersensitivity to the active substance or to any of the
excipients or other milbemycins.
Very rare
(<1 animal / 10,000 animals treated,
including isolated reports):
Abdominal pain
Swollen muzzle
Ataxia
, muscle tremor
, droopy lower
lip
Depression
1
In young animals. These adverse effects are usually transient and disappear
spontaneously in most cases.
Reporting adverse events is important. It allows continuous safety monitoring of a
veterinary medicinal product. Reports should be sent, preferably via a veterinarian, to
either the marketing authorisation holder or the national competent authority via the
national reporting system. See the package leaflet for respective contact details.
AN: 02102/2023 & 02107/2023
Special precautions for safe use in the target species:
To avoid overdosing, care should be taken to accurately dose foals, especially low
bodyweight foals or pony foals.
Do not use the same syringe to treat more than one animal unless horses are
running together or in direct contact with each other in the same premises. The
veterinary medicinal product has been formulated specifically for use in horses only.
Special precautions to be taken by the person administering the veterinary medicinal
product to animals
Avoid direct contact with skin and eyes.
Personal protective equipment consisting of protective gloves should be worn when
handling the veterinary medicinal product.
Wash hands or any exposed area after use.
Do not smoke, drink or eat while handling the veterinary medicinal product.
In case of eye contact, flush the eye with copious amounts of clean water and seek
medical advice immediately and show the package leaflet or the label to the
physician.
Special precautions for the protection of the environment:
Moxidectin fulfils the criteria for a (very) persistent, bioaccumulative and toxic (PBT)
substance; therefore, exposure of the environment to moxidectin must be limited to
the extent possible. Treatments should be administered only when necessary and
should be based on faecal egg counts or evaluation of the risk of infestation at the
animal and/or herd level. In order to reduce the emission of moxidectin to surface
water and based on the excretion profile of moxidectin when administered as the oral
formulation to horses, treated animals should not have access to watercourses
during the first week after treatment.
Like other macrocyclic lactones, moxidectin has the potential to adversely affect non-
target organisms:
•
temporarily reduce the abundance of dung feeding organisms. Following treatment
of horses with the product, levels of moxidectin that are potentially toxic to dung
beetles and flies may be excreted over a period of more than 1 week and may
decrease dung fauna abundance.
Moxidectin is inherently toxic to aquatic organisms including fish. The product should
be used only according to the label instructions.
Other precautions:
The veterinary medicinal product has been formulated specifically for use in horses
only. Dogs or cats may be adversely affected by the concentration of moxidectin in
this veterinary medicinal product if they are allowed to ingest spilled paste or have
AN: 02102/2023 & 02107/2023
access to used syringes. Neurological signs (such as ataxia, muscle tremor and
convulsions) and digestive clinical signs (such as hypersalivation) were recorded.
This information is sourced from the official Summary of Product Characteristics (SPC) published by the Veterinary Medicines Directorate (VMD). It is provided for informational purposes only and does not replace professional veterinary advice. Always consult your vet before administering any medication.
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Other Products Containing Moxidectin
These products share the same active ingredient and may be suitable alternatives. Always consult your vet.
Advocate
POM-VAdvocate 100 mg + 25 mg Spot-on Solution for Medium Dogs (> 4–10 kg)
POM-VElanco Animal Health GmbH
Advocate 250 mg + 62.5 mg Spot-on Solution for Large Dogs (> 10–25 kg)
POM-VElanco Animal Health GmbH
Advocate 40 mg + 10 mg Spot-on Solution for Small Dogs (≤ 4 kg)
POM-VElanco Animal Health GmbH
Advocate 40 mg + 4 mg Spot-on Solution for Small Cats (≤ 4 kg) and Ferrets
POM-VElanco Animal Health GmbH
Advocate 400 mg + 100 mg Spot-on Solution for Extra-Large Dogs (> 25–40 kg)
POM-VElanco Animal Health GmbH
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