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Ectofly Pour-On (Cypermethrin)
Ectofly Pour-On (Cypermethrin)

Ectofly Pour-On (Cypermethrin)

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Ectofly Pour-On is used in the treatment and control of ticks, headflies and biting lice in sheep. Ectofly Pour-On is also used to prevent blowfly strike. Ectofly Pour-On  also has a short withdrawal period of only 7 days making it the ideal product for lambs going to slaughter.

Active Ingredient: Cypermethrin

Target Species: Sheep

Treats and Controls: Ticks, headflies and biting lice. Can be used to prevent blowfly strike

Administration Method: Pour-On

Length of Protection: Weeks

Withdrawal Time: 7 days for sheep intended for meat and offal. Not recommended for sheep producing milk for human consumption

Dosage Rates for Ectofly Pour-On

Whether treating for blowfly, lice, ticks or headflies there is a different method and application method for each. For best results the proper application gun should be used which can be seen by clicking here. The gun comes complete with all nozzles needed for each application.

Blowfly Prevention: Not to be administered to animals under 12.5kg. Should be applied with the fan spray nozzle attached. Ectofly Pour-On should be applied from between the shoulders along the back down to the top of the tail and then from the top of the tail down the rump on each side.

Body Weight Dose Volume Number of full doses per pack
2.5 Litre 5 Litre
Up to 25kg 20 ml 125 250
25-40kg 30 ml 83 166
Over 40kg 40 ml 62 125

Lice Treatment and Control: 5ml per 20kg bodyweight. Dose not to exceed 20ml. The straight nozzle should be use on the applicator gun. Ectoflyr Pour-On should be applied from the shoulders to the top of the tail in a pin line.

Body Weight Dose Volume Number of full doses per pack
2.5 Litre 5 Litre
Up to 20kg 5 ml 500 1000
21-40kg 10 ml 250 500
21-60kg 15 ml 166 333
Over 60kg 20 ml 125 250


Tick Treatment and Control: 10ml per 20kg bodyweight. Dose not to exceed 40ml. The straight nozzle should be use on the applicator gun. Ectofly Pour-On should be applied from the crown of the head to the top of the tail in a pin line.

Body Weight Dose Volume Number of full doses per pack
2.5 Litre 5 Litre
Up to 20kg 10 ml 250 500
21-40kg 20 ml 125 250
21-60kg 30 ml 83 166
Over 60kg 40 ml 62 125


Headfly Treatment and Control: 5ml per animal irrespective of bodyweight. The T-bar nozzle should be use on the applicator gun. Ectofly Pour-On should be applied to the top of the head between the ears. Care should be taken not to get any in the animals eyes.

Body Weight Dose Volume Number of full doses per pack
2.5 Litre 5 Litre
All sizes 5 ml 500 1000


Always read the label and all enclosed information for Ectofly Pour-On before administering to animals!

This Product is only licensed for sale in the Republic of Ireland

Ectofly Datasheet

Click here to Download Data Sheet

Health Products Regulatory Authority 

Summary of Product Characteristics

Ectofly 12.5 mg/ml Pour-On Solution for Sheep

Each ml contains
Active Substance
Cypermethrin tech. (cis:trans / 80:20) 12.5 mg

Green S Dye (E142) 0.2 mg
For the full list of excipients, see section 6.1.

Pour-On Solution.
Clear blue non-aqueous solution.

4.1 Target Species


4.2 Indications for use, specifying the target species
For the treatment and control of headflies, and treatment of tick infestation and biting lice.
For the prevention and treatment of blowfly strike.

4.3 Contraindications
Not to be used in lambs less than one week old.
For the prevention of blowfly strike; do not administer to animals of less than 12.5 kg bodyweight.
Avoid treating very young lambs if the weather is unseasonably hot.
Do not use in the case of hypersensitivity to the active substance or to any of the excipients.

4.4 Special warnings for each target species
Frequent and repeated use of antiparasiticides from the same class may increase risk of development of resistance.

4.5 Special precautions for use
Special precautions for use in animals

Care must be taken not to apply the product right to the lamb’s tail, as a ewe recognises a young lamb partly by the smell of the tail area.
Blowflies are attracted by dirty, damp wool or open wounds.
The most common site for fly strike is the rump due to soiling caused by diarrhoea and urine staining.
The efficacy of the product is reduced in the presence of soiled or dirty wool.
Therefore, sheep must be crutched(dagged) regularly and appropriate worm control measures employed.
Take care not to apply product in the sheep’s eyes.
This precaution should be observed particularly when treating breeds with little wool on their heads.
Full operating and maintenance instructions, including details on the use of nozzles, are supplied with each Pour-On Gun.
Please read carefully before use.
Maintain gun carefully to ensure accurate dosage.
For external use only.

Special precautions to be taken by the person administering the veterinary medicinal product to animals
This product is harmful if swallowed and may cause skin, eye or respiratory irritation.
This product may also cause hypersensitivity reactions.
Avoid skin and/or eye contact.
Avoid children from getting access to the product or treated animals.
Use in a well-ventilated area and avoid inhaling the vapour.
Wear eye protection, protective clothing, rubber gloves and boots when applying the product and handling the animal until the product has dried.
Wear a disposable face-mask when applying as a fan-spray for the prevention of blowfly-strike.
Make sure when attaching the recommended applicator gun onto the container that the coiled retainer is secured onto the cap and the applicator.
Wash splashes from skin and eyes immediately with plenty of clean water.
If irritation persists seek medical advice immediately and show the package leaflet to the physician.
Remove contaminated clothing immediately and wash exposed skin with plenty of clean water.
Do not eat, drink or smoke whilst using the product.
Wash hands immediately after use.
In case of accidental ingestion or mouth contact, immediately rinse the mouth with plenty of water and seek medical advice.

Other precautions
Cypermethrin is extremely toxic to aquatic and dung organisms.
As a precautionary measure sheep must be kept away from watercourses for at least 12 hours following treatment (see section 5.3, ‘Environmental properties’).
Given the risks to the environment the use of the product should be limited to one treatment per year per pasture Long term effects on dung insects caused by continuous or repeated use of pyrethroid ectoparasiticides cannot be excluded.
Therefore repeated treatment of animals on the same pasture with a pyrethroid-containing product within a season should only be given in the absence of alternative treatments or approaches to maintain animal/flock health, as advised by a veterinarian.

4.6 Adverse reactions (frequency and seriousness)
None known.

4.7 Use during pregnancy, lactation or lay Pregnancy:
Can be used during pregnancy.
Pregnant ewes must be handled with care.

4.8 Interaction with other medicinal products and other forms of interactions
The product must be applied only with the recommended applicator gun, as the product may have a detrimental effect on certain components of conventional dosing guns.

4.9 Amounts to be administered and administration route
To ensure administration of a correct dose, body weight should be determined as accurately as possible; accuracy of the dosing device should be checked.
On completion of each treatment cycle of the product and before the dosing gun is stored, immediately expel any remaining product in the dosing gun.
Administer by means of the recommended applicator gun as follows:

Blowflies: Prevention of blowfly strike
Bodyweight       Dose                       Doses per litre
Up to 25 kg*       20 ml                            50
25 to 40 kg         30 ml                            33
Over 40 kg         40 ml                            25

*Do not administer to animals of less than 12.5 kg bodyweight.
The dose should be limited to a maximum dose of 40 ml per animal.
Apply as a fan-spray to the surface of the fleece on the back and hindquarters of the sheep using the Pour-On Gun fitted with the fan-spray nozzle.
Half the dose should be applied to the shoulders, back and flanks, and half to the rump.
The distance between the nozzle and the fleece should be approximately 20 cm.
Each dose will require 2 or 3 sweeps to apply.

One application will give 6 - 8 weeks protection.
Re-treat as required.

Treatment of blowfly strike
Apply directly to all the affected parts at the rate of 2.5 ml per 100 – 150 cm2 (roughly the size of a hand).
The T-bar nozzle should be used.
Most strikes will require 5 - 10 ml.
Ensure that all affected parts are treated.
A single application is sufficient to ensure that larvae are expelled and killed within a few hours.

5 ml per 20 kg bodyweight up to a maximum of 20 ml. 

Bodyweight       Dose                                 Doses per litre
Up to 20 kg       5 ml                                           200
21 to 40 kg      10 ml                                           100
41 to 60 kg      15 ml                                             66
Over 60 kg      20 ml                                             50

Using the straight nozzle on the applicator gun, apply as a pin-stream from the shoulders to the rump along the middle of the backline.
Sheep may be treated off-shears or at any time during the year.

Adult sheep and lambs greater than 10 kg: 10 ml per 20 kg bodyweight, up to a maximum of 40 ml.
Lambs under 10 kg: 5 ml followed 3 weeks later by a 10 ml application.

Bodyweight      Dose                                 Doses per litre
Up to 10 kg       5 ml                                        200
11 to 20 kg      10 ml                                        100
21 to 40 kg      20 ml                                          50
41 to 60 kg      30 ml                                          33
Over 60 kg      40 ml                                          25

Using the straight nozzle on the Pour-On Gun, apply as a pin-stream from the crown of the head to the top of the rump.

5 ml per animal irrespective of size.
Apply to the top of the head between the ears using the T-bar nozzle.
Take care not to apply product in the sheep’s eyes.
One application before the start of the headfly season will give up to 4 weeks protection.
Re-treat as required.
This product contains a dye to aid in the identification of treated animals.
The colour is temporary and will fade from the fleece within 48 hours of application. 

4.10 Overdose (symptoms, emergency procedures, antidotes), if necessary
Toxic signs in mammals are tremors, hyperexcitability, salivation, chorea, athetosis and paralysis, rarely leading to death.
Usually, the signs disappear rapidly and the animals recover, generally within a week.
There is no specific antidote but symptomatic therapy can be given if considered necessary.

4.11 Withdrawal period(s)
Meat and offal: 8 days.
Milk: 5 days.

ATCvet code:


Pharmacotherapeutic group:
ectoparasiticides for topical use, incl. Insecticides.

5.1 Pharmacodynamic properties
Cypermethrin is a neuropoison acting on the axons in the peripheral and central nervous system of insects by interacting with sodium channels.

5.2 Pharmacokinetic particulars
Synthetic pyrethroids are generally metabolised in mammals through ester hydrolysis, oxidation and conjugation and there is no tendency to accumulate in tissues.

5.3 Environmental Properties:
Cypermethrin is moderately persistent and non-mobile in soil.
It is extremely toxic to aquatic invertebrates.
Cypermethrin is toxic to dung insects and to honey bees.
Long term effects on dung insects caused by continuous or repeated use of the product cannot be excluded.

6.1 List of excipients

Green S Dye (E142)
Diethylene glycol monobutyl ether

6.2 Major incompatibilities
None known.

6.3 Shelf-life
Shelf life of the veterinary medicinal product as packaged for sale: 2 Years.
Shelf life after first opening of the immediate packaging: 3 months.

6.4 Special precautions for storage
Do not store above 25 °C.
Protect from direct sunlight.
Store in tightly closed original container in a safe place.
Store away from food, drink and animal feeding stuffs.

6.5 Nature and composition of immediate packaging
White high-density polyethylene flat bottom containers with polypropylene closures and induction heat-sealed wadding, at 1 litre, 2.5 litre 5 litre and 7.5 litre (2.5 litre + 5 litre) pack sizes.
Not all pack sizes may be marketed.

6.6 Special precautions for the disposal of unused veterinary medicinal products or waste materials derived from the use of such products
Any unused veterinary medicinal product or waste material derived from such veterinary medicinal products should be disposed of in accordance with local requirements.

EXTREMELY DANGEROUS to aquatic invertebrates.
Do not contaminate ponds, waterways or ditches with the product or empty container.

Bimeda Animal Health Limited
2, 3 & 4 Airton Close
Airton Road
Dublin 24


Date of first authorisation: 20 April 2012
Date of last renewal: 30 September 2016

June 2019

Sheep Pour-ons and spot-ons
Pour-ons and spot-ons need to be applied accurately and each manufacturer may recommend subtle differences. Use appropriate and calibrated guns, always clean with warm soapy water and then rinse after use. Store in a safe dry place. When treating sheep with these products, make sure they are applied along the back line. If placed to one side, the product will not spread evenly around the body. No pour-on or spot-on is effective against sheep scab.

The Four Stroke Method: The four stroke method ensures the pour-on is applied evenly by applying a quarter of the application at a time in four simple strokes.

1) 1/4 applied from between the shoulders to middle of back
2) 1/4 applied from middle of back to top of animals tail
3) 1/4 applied from one side of the animals tail down the crutch
4) 1/4 applied from other side of tail down the other crutch


Delivery Information

Delivery Service

Here at Agridirect we have joined forces with DPD to ensure all packages are delivered promptly and safely to you. We ship to all mainland countries within the EU. Deliveries take place Monday to Friday excluding bank holidays. Once your order has been dispatched from our warehouse you will be notified by email. If there is a delay with your order for any reason you will be contacted immediately. 

Due to Brexit we are temporarily unable to ship to the UK. Shipping to Northern Ireland will remain in place.

Delivery Times
Ireland (ROI & NI) EU (Mainland Only)
2-4 Working Days 4-6 Working Days

Some products have an extended delivery time, this is noted on the products.

Delivery Rates

Country Orders Under €129 Orders Over €129
Ireland (ROI & NI) €7.99 €0.00
Austria €24.99 €17.00
Belgium €21.99 €14.00
Czech Republic €24.99 €17.00
Denmark €24.99 €17.00
Finland €36.99 €29.00
France €21.99 €14.00
Germany €21.99 €14.00
Hungary €28.99 €21.00
Italy €34.99 €23.00
Luxenburg €21.99 €14.00
Netherlands €21.99 €14.00
Poland €21.99 €17.00
Portugal €36.99 €29.00
Slovakia €28.99 €21.00
Slovenia €28.99 €21.00
Spain €34.99 €27.00
Sweden €34.99 €27.00


A selection of the products we sell are only licensed for sale within the Republic Of Ireland and can not be shipped outside of the country. These products are noted as only being available within the Republic of Ireland on the individual product pages.

There may be an addition charge on certain bulky items. This charge will be clearly marked on an applicable products and will be explained on the checkout page before payment has been made.

Agridirect Returns Policy

We’re sorry your purchase didn’t work out. But don’t worry; we have a great returns policy to help you out.

All purchases can be returned to us within 14 days of delivery and returned goods must be received within 14 days from the date you informed us of the return.

Purchases may be opened for inspection but must not be used and must be repackaged securely in the original packaging if you wish to return it.

If we discover goods have been used or there has been a loss in value of the goods due to damage to the goods, while in your care or whilst being returned to us, we will reduce the amount refunded, which may amount to the full cost of the product, to cover loss of value of goods.

All returns should be complete which includes boxes, manuals and accessories that may have been included with the order.

All returns must be packaged appropriately for shipping, we will not accept responsibility for damages or loss which occur during shipping of a return product.

We accept no responsibility for goods damaged or lost while in transit to us. 

How do I return a product?

We have partnered with DPD to make your returns process easy and secure. simply follow the steps below and bring your package to an official DPD pickup point.

1) All returns must be accompanied with a fully filled out returns form which can be downloaded here.

2) To print off your return label click here or visit and follow the on-screen instructions. Make sure and use your order number as your reference.

  • Select “Continue as Guest”
  • Select “Agridirect” from the drop-down menu
  • Select your reason for returning
  • Select the size of the package you wish to return
  • Accept DPD’s terms and conditions
  • Fill in your payment details
  • Fill in your own details
  • Follow the instructions to print off your label

3) Bring your package to a DPD pickup point. To find your nearest drop off point here.

Once the returned product has been received into our warehouse and been fully inspected a refund will be issued.

If you choose not to use the DPD returns service we recommend that you use a method that can be tracked.

For the return of bulk products please contact us at

I have received a damaged product from you, what should I do?

First off, if you have received a damaged electrical product from us, do not plug it in. Any electrical products that are plugged in are deemed ‘as used and accepted’ and are not accepted as returns. All damages must be reported to us via phone or email within 24hours of receipt of goods. Please ensure you check your items upon delivery.

How do I begin the returns process?

If you wish to begin the return process, please email us at and ensure the following information is included in your email. Your name, phone number, Order id, the item you wish to return, reason for return and if the product is damaged we require photos of the product.

Once you have sent us all required information a member of our team will assess your claim and will contact you as soon as possible. Please hold off on returning products until a member of our team has called you to confirm.


Once the returned product has been returned to us and fully inspected a refund will be issued.

Please Note: A typical timeline for a refund to show in your account is up to 10 working days from the date processed, depending on your bank.



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