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Maximec Horse Oral Paste, 18.7 mg/g

Active ingredient: Ivermectin

Form

Paste

Species

Horses

Manufacturer

Bimeda Animal Health Limited

VMD MA No.

50146/5008

What it's used for

Triodontophorus brevicauda Triodontophorus serratus Craterostomum acuticaudatum (adults) AN: 02512/2024 & 02516/2024 Small strongyles Adult and immature (f...

Full indications, dosage and side effects ↓
View official SPC (PDF)

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Paying less for Ivermectin

  1. 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.

  2. 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.

Prescription required

Your vet must provide a written prescription on request. You can then purchase from any licensed online retailer.

Clinical information

Maximec Horse Oral Paste, 18.7 mg/g — SPC Details

Source: VMD Summary of Product Characteristics (SPC). Last updated 27 Mar 2026.

Triodontophorus brevicauda
Triodontophorus serratus
Craterostomum acuticaudatum (adults)
AN: 02512/2024 & 02516/2024
Small strongyles
Adult and immature (fourth stage larvae) small strongyles or cyathostomes including
benzimidazole-resistant strains.
Coronocyclus spp.
Coronocyclus coronatus
Coronocyclus labiatus
Coronocyclus labratus
Cyathostomum
Cyathostomum catinatum
Cyathostomum pateratum
Cylicocyclus spp.
Cylicocyclus ashworthi
Cylicocyclus elongatus
Cylicocyclus insigne
Cylicocyclus leptostomum
Cylicocyclus nassatus
Cylicocyclus radiatus
Cylicostephanus spp.
Cylicostephanus asymetricus
Cylicostephanus bidentatus
Cylicostephanus calicatus
Cylicostephanus goldi
Cylicostephanus longibursatus
Cylicostephanus minutus
Cylicodontophorus spp.
Cylicodontophorus bicornatus
Gyalocephalus capitatus
Parapoteriostomum spp.
Parapoteriostomum euproctus
Parapoteriostomum mettami
Petrovinema spp.
Petrovinema poculatum
Poteriostomum
Poteriostomum imparidentatum
Lungworms
Dictyocaulus arnfieldi
Pinworms (adult and immatures)
Oxyuris equi
Ascarids
Parascaris equorum
Hairworms (adults)
Trichostrongylus axei
Large-mouth stomach worms (adults)
Habronema muscae
Neck threadworms (microfilariae)
Onchocerca
AN: 02512/2024 & 02516/2024
Intestinal threadworms (adults)
Strongyloides westeri
Stomach bots
Oral and gastric stages of Gastrophilus spp.
ivermectin per kilogram of bodyweight. Each syringe delivers 120 mg ivermectin, sufficient
to treat 600 kg of bodyweight.
Dosing Instructions: Each weight marking on the syringe plunger will deliver sufficient
paste to treat 100 kg bodyweight. Unlock the knurled ring by making ¼ turn and slide the
knurled ring up the plunger shaft so that the side nearest the barrel is at the prescribed
weight marking. Turn the knurled ring ¼ turn to lock in place. Make sure the horse’s mouth
contains no feed. Remove the plastic cap from the tip of the nozzle. Insert the syringe into
the horse’s mouth at the interdental space. Advance the plunger as far as it will go,
depositing the medication on the base of the tongue. Immediately raise the horse’s head
for a few seconds after dosing.
Parasite control program: All horses should be included in a regular parasite control
program with particular attention being paid to mares, foals and yearlings.
To ensure administration of a correct dose, bodyweight should be determined as
accurately as possible.
AN: 02512/2024 & 02516/2024
This veterinary medicinal product has been formulated specifically for use in horses only.
Dogs or cats may be adversely affected by the concentration of ivermectin in this
veterinary medicinal product if they are allowed to ingest spilled paste or have access to
used syringes.
Horses:
Undetermined frequency (cannot
be estimated from the available
data)
Oedema
, Pruritus
1
Some horses carrying heavy infection of Onchocerca microfilariae have experienced
oedema and pruritus following dosing, assumed to be the result of death of large numbers
of microfilariae. These signs resolve within a few days, but symptomatic treatment may be
advisable.
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 its local representative or the national
competent authority via the national reporting system. See the package leaflet for
respective contact details.
Care should be taken to avoid the following practices because they increase the risk of
development of resistance and could ultimately result in ineffective therapy:
- Too frequent and repeated use of anthelmintics from the same class, over an extended
period of time.
- Underdosing, which may be due to underestimation of bodyweight or misadministration
of the veterinary medicinal product.
Suspected clinical cases of resistance to anthelmintics should be further investigated using
appropriate tests (e.g. Faecal Egg Count Reduction Test). Where the results of the test(s)
strongly suggest resistance to a particular anthelmintic, an anthelmintic belonging to
another pharmacological class and having a different mode of action should be used.
Resistance to ivermectin (an avermectin) has been reported in Parascaris equorum in
horses in a number of countries, including the EU. Therefore, the use of this veterinary
medicinal product should be based on local (regional, farm) epidemiological information
about susceptibility of nematodes and recommendations on how to limit further selection
for resistance to anthelmintics.

Special precautions for safe use in the target species:
Where there is significant tissue damage following Habronema infestation, additional
medical therapies may be required.
Dogs or cats may be adversely affected by the concentration of ivermectin in this
veterinary medicinal product if they are allowed to ingest spilled paste or have access to
used syringes.
Special precautions to be taken by the person administering the veterinary medicinal
product to animals:
Do not smoke, drink or eat while handling this veterinary medicinal product.
Wash hands after use.
Special precautions for the protection of the environment:
EXTREMELY DANGEROUS TO FISH AND AQUATIC LIFE. Do not contaminate surface
waters or ditches with the product or used container.
AN: 02512/2024 & 02516/2024
None known.
This veterinary medicinal product does not require any special storage conditions.
Meat and offal: 21 days.
Milk: Not permitted for use in lactating mares producing milk for human consumption.

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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