Skip to content
POM-VPS Prescription Required

Flyclanil 5% Pour-on Suspension for Sheep

Active ingredient: Dicyclanil

Form

Spot-on

Species

Sheep

Manufacturer

Elanco GmbH

VMD MA No.

52127/5144

What it's used for

Prevention of blowfly strike due to Lucilia sericata on sheep. 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

Flyclanil 5% Pour-on Suspension for Sheep — SPC Details

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

Prevention of blowfly strike due to Lucilia sericata on sheep.
Prevention of blowfly strike due to Wohlfahrtia magnifica on sheep.
For external use only.
Flyclanil 5% Pour-on Suspension for Sheep is applied according to the following
recommendations:
Body weight (kg)Dose Volume (ml)10-202021-302531-5030>5035
(Guide dose volumes correspond to 0.6 – 2 ml (30 – 100 mg dicyclanil) per kg bodyweight.)
Shake the container well before use.
Flyclanil 5% Pour-on Suspension for Sheep must be applied with a manual or automatic
dosing gun (e.g. Elanco Pour-on gun), 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 along the spine
of the animal in a band 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.
Flyclanil 5% Pour-on Suspension for Sheep is administered once, before predicted
Wohlfahrtia fly activity, or before or at the beginning of Lucilia fly activity. Flyclanil 5% Pour-
on Suspension for Sheep will protect against blowfly strike caused by Wohlfahrtia or Lucilia
flies for 16 weeks. In individual cases, a strike may occur earlier; therefore, it is good practice
to check animals regularly for blowfly strike.
Do not shear sheep in the 3 months after treatment.
Do not use in sheep producing milk for human consumption.
Do not use in case of hypersensitivity to the active substance or any of the excipients.
None known.
None

i) Special precautions for use in animals

The 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.

Revised: November 2025
AN: 02723/2025
It is recommended that animals with dirty back-ends are dagged 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.
The use of Flyclanil 5% Pour-on Suspension for Sheep has harmful effects on dung flies.
Treated sheep 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.
ii) Special precautions to be taken by the person administering the veterinary
medicinal product to animals
•
applying the product.
•
parts of the body with soap and water.
•
physician for advice.
•
•
drinking or smoking.
•
•
Handling sheep in the weeks following treatment:
•
•
some weeks.
•
are wet also wear waterproof trousers and coat.
None known.

Revised: November 2025
AN: 02723/2025
Protect from direct sunlight.
Protect from frost.
Store in the original container.
Keep the container tightly closed.
Propylparaben
Butylated hydroxytoluene
E218
E216
E321
For a full list of excipients, see section

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.

Medication costs adding up?

Pet insurance can cover prescription medications. Find the right policy for your pet.

Compare insurance

Find cheaper vets near you

Compare vet consultation prices in your area. Save on procedures and get a prescription to buy medications online.