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POM-VPS Prescription Required

Bimectin 18.7 mg/g Oral Paste for Horses

Active ingredient: Ivermectin

Form

Paste

Species

Horses

Manufacturer

Bimeda Animal Health Limited

VMD MA No.

50146/4036

What it's used for

The product is indicated for the treatment of nematode or arthropod infestations in horses due to: Large strongyles Strongylus vulgaris (adults and 4 th la...

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

The prescription itself has a price. See what practices near you charge for a consultation and the written prescription fee.

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

Bimectin 18.7 mg/g Oral Paste for Horses — SPC Details

Source: VMD Summary of Product Characteristics (SPC). Last updated 26 Mar 2026.

The product is indicated for the treatment of nematode or arthropod infestations
in horses due to:
Large strongyles
Strongylus vulgaris (adults and 4
th
larval [arterial] stages)
S. edentatus (adults and 4
th
larval [tissue] stages)
S. equinus (adults)
Triodontophorus spp. (adults)
Triodontophorus brevicauda
Triodontophorus serratus
Small Strongyles
Adults and immatures (fourth stage larvae) small strongyles or cyathostomes
unless otherwise stated. Ivermectin is not effective against the encysted larval
stages of the small strongyles.
Coronocyclus spp.
Coronocyclus coronatus
Coronocyclus labiatus
Coronocyclus labratus
Cyathostomum spp.

Revised: November 2021
AN: 00980/2021Page 2 of 6
Cyathostomum catinatum
Cyathostomum pateratum
Cylicocyclus spp.
Cylicocyclus ashworthi
Cylicocyclus elongatus
Cylicocyclus insigne
Cylicocyclus leptostomum
Cylicocyclus nassatus
Cylicostephanus spp.
Cylicostephanus calicatus
Cylicostephanus goldi
Cylicostephanus longibursatus
Cylicostephanus minutus
Cylicodontophorus spp.
Cylicodontophorus bicornatus
Parapoteriostomum spp.
Parapoteriostomum mettami
Petrovinema spp.
Petrovinema poculatum
Poteriostomum spp.
Lungworms
Dictyocaulus arnfieldi
Pinworms (adult and inhibited fourth stage larvae)
Oxyuris equi
Ascarids
Parascaris equorum
Hairworms (adults)
Trichostrongylus axei
Large-mouth stomach worms (adults)
Habronema muscae
Neck threadworms (microfilariae)
Onchocerca spp.
Intestinal threadworms (adults)
Strongyloides westeri
Stomach bots (oral and gastric stages)
Gasterophilus spp.
Administer orally as a single dose rate to horses at the recommended dose level
of 0.2mg ivermectin per kilogram of bodyweight. The smaller syringe delivers
120mg ivermectin, sufficient to treat 600kg of bodyweight. The bigger syringe
delivers 160mg ivermectin, sufficient to treat 800kg of bodyweight.
To ensure administration of the correct dose, body weight should be determined
as accurately as possible.
If animals are to be treated collectively rather than individually, they should be
grouped according to their bodyweight and dosed accordingly, in order to avoid
under- or over-dosing.
This is a single dose product. Discard after use.
Dosing Instructions:
Each weight marking on the syringe plunger will deliver sufficient paste to treat
100kg 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.
The treatment schedule should be based on the local epidemiological situation.
None.
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.
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:
•
an extended period of time.
•
misadministration of the product.

Revised: November 2021
AN: 00980/2021Page 3 of 6
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 tests(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 has been reported in Parascaris equorum in horses in a
number of countries, including the EU.
Therefore, the use of this product should be based on local farm epidemiological
information about susceptibility of nematodes and recommendations on how to
limit further selection for resistance to anthelmintics.

(i) Precautions for use in animals
Special warning for non-target species: The product has been formulated for use
in horses only. Cats, Dogs, especially Collies, Old English Sheepdogs and
related breed or crosses, and also turtles and tortoises may be adversely
affected by the concentration of ivermectin in this product if they are allowed to
ingest spilled paste or have access to used syringes.
Parasite resistance to any particular class of anthelmintic may develop following
frequent, repeated use of an anthelmintic of that class.
(ii) Special precautions to be taken by the person administering the
veterinary medicinal product to animals
Do not eat, drink or smoke while handling the product. Avoid contact with skin
and eyes. If accidental skin contact occurs, wash the affected area immediately
with soap and water. If accidental eye exposure occurs, flush the eyes
immediately with water and, if necessary, get medical attention. Wash hands
after use.
interaction
The effects of GABA agonists are increased by ivermectin.
This veterinary medicinal product does not require any special storage
conditions.

Revised: November 2021
AN: 00980/2021Page 6 of 6
Revised: November 2021
AN: 00980/2021Page 4 of 6
4.8 Interaction with other medicinal products and other forms of
interaction
The effects of GABA agonists are increased by ivermectin.
4.9 Amounts to be administered and administration route
Administer orally as a single dose rate to horses at the recommended dose level
of 0.2mg ivermectin per kilogram of bodyweight. The smaller syringe delivers
120mg ivermectin, sufficient to treat 600kg of bodyweight. The bigger syringe
delivers 160mg ivermectin, sufficient to treat 800kg of bodyweight.
To ensure administration of the correct dose, body weight should be determined
as accurately as possible.
If animals are to be treated collectively rather than individually, they should be
grouped according to their bodyweight and dosed accordingly, in order to avoid
under- or over-dosing.
This is a single dose product. Discard after use.
Dosing Instructions:
Each weight marking on the syringe plunger will deliver sufficient paste to treat
100kg 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.
The treatment schedule should be based on the local epidemiological situation.
4.10 Overdose (symptoms, emergency procedures, antidotes), if
necessary
Mild transitory signs (slowed pupillary light response and depression) have been
seen at a dose of 1.8mg/kg (9 times the recommended dose level). Other signs
seen at higher doses includes mydriasis, ataxia, tremors, stupor, coma and
death. The less severe signs have been transitory. No antidote has been
identified; however, symptomatic therapy may be beneficial.
4.11 Withdrawal period(s)
Meat and offal: 34 days.
Do not use in mares producing milk for human consumption.
5.

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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