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POM-VPS Prescription Required

CLiK Extra 65 mg/ml Pour-On Suspension for Sheep

Active ingredient: Dicyclanil

Form

Spot-on

Species

Sheep

Manufacturer

Elanco GmbH

VMD MA No.

52127/3007

What it's used for

Prevention of blowfly strike due to Wohlfahrtia magnifica on sheep.

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 Dicyclanil

  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

CLiK Extra 65 mg/ml Pour-On Suspension for Sheep — SPC Details

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

Prevention of blowfly strike due to Wohlfahrtia magnifica on sheep.
For the 0.8 L, 2.5 L and 5 L containers, unscrew the blue cap from the container and replace
it with the white spigot cap provided. If using a manual gun, attach the tube from the
application device to the white spigot cap. If using an automatic drenching-gun, connect the
device directly to the spigot cap provided. After use, remove the white spigot cap and close
the container with the blue cap.
For the 20 L container, if using a manual drenching gun with a spigot cap and a tube, unscrew
the white cap from the container and replace it with a spigot cap. Attach the extended tubing
to provide flexible extension between the container and applicator gun. If using an automatic
drenching gun, connect the device directly to a spigot cap. After use, remove the white spigot
cap and close the container with the white cap.
The veterinary medicinal product is applied according to the following recommendations:
Guide dose volumes correspond to 0.6 – 2 ml [39 – 130 mg dicyclanil] per kg bodyweight.
To ensure administration of a correct dose, bodyweight should be determined as accurately
as possible; accuracy of the dosing device should be checked.
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
overdosing.
AN: 00347/2025 & 00560/2025Page 4 of 7
Recommended for treatment in sheep with any wool length, including off-shears.
Shake the container well before use. For shaking heavier 20 L containers, the
container should be placed on a horizontal surface, and shaken, or rolled, sideways,
backwards and forwards on the horizontal surface. Do not dilute with water.
The veterinary medicinal product must be applied with a manual or automatic dosing gun,
fitted with a spray nozzle, which guarantees the correct spreading of the product on the
fleece. Best results will be achieved by holding the gun approximately 45 cm from the
sheep during application. Apply as a fan spray using a 4 stroke method as shown in the
pictogram along the spine of the animal in bands at least 10 cm wide from the middle of
the shoulders and in an arc around the crutch and tail. Half the dose should be applied
along the spine with the remainder over the tail and crutch area.
The veterinary medicinal product should be applied before, or at the start of, predicted fly
activity.
The veterinary medicinal product will protect against fly strike for 19 weeks. It is good
agricultural practice to check animals regularly for fly strike.
Do not use in cases of hypersensitivity to the active substance or to any of the excipients.
AN: 00347/2025 & 00560/2025Page 2 of 7
Target species: Sheep.
None known.
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 package leaflet for respective contact details.
AN: 00347/2025 & 00560/2025Page 3 of 7
The veterinary medicinal product is best applied before an anticipated blowfly challenge,
or when a blowfly challenge is identified on, or in the vicinity of, the farm. Established
strikes may require a separate treatment with a knockdown insecticide. It is recommended
that animals with dirty back-ends are dagged or crutched prior to application. If dagging
or crutching is undertaken in the weeks following application, these animals should be re-
treated, otherwise protection could be lost.
Do not apply during heavy rainfall, or when such conditions are expected. The resulting
wash out may reduce the protection period.

Special precautions for safe use in the target species:
Not applicable.
Special precautions to be taken by the person administering the veterinary medicinal
product to animals:
Redness and irritation may develop after skin or eye contact with the veterinary medicinal
product.
Contact with skin and eyes should be avoided.
Personal protective equipment consisting of synthetic rubber gloves and PVC trousers
should be worn when handling the veterinary medicinal product.
In case of skin contact remove contaminated clothing and thoroughly wash the affected
parts of the body with soap and water.
In case of eye contact wash immediately with clean water.
Always wash hands and exposed skin with soap and water after work.
Do not eat, drink or smoke whilst using the veterinary medicinal product.
Residues remain on the fleece for some time after treatment, therefore, it is good agricultural
practice to minimise handling of sheep after treatment. If you need to handle sheep within
3 months after treatment, wear synthetic rubber gloves and long trousers or coveralls. If
sheep are wet wear waterproof trousers.
Do not shear sheep in the 3 months after treatment.
Special precautions for the protection of the environment:
Treated sheep must be kept away from watercourses for at least one hour after treatment.
There is a serious risk to aquatic life if this advice is not followed.
None known.
Protect from frost.
Store in the original container.
Keep the container tightly closed, away from food, drink and animal feedstuffs.
AN: 00347/2025 & 00560/2025Page 6 of 7
Protect from direct sunlight.
Meat and offal: 40 days.
Not authorised for use in animals producing milk for human consumption.
AN: 00347/2025 & 00560/2025Page 5 of 7
4.

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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