UK Registered Veterinary Retailer

Clik Insect Growth Regulator Pour On

Clik Insect Growth Regulator Pour On
800ml Bottle

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  • 800ml Bottle £71.99
  • 2.2 litre Bottle £118.98
  • 5 litre Bottle £219.99

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£71.99 to £219.99


Up to 16 weeks control of blowfly. This means that one application is all that is required on most farms. Contains Dicyclanil, a potent insect growth regulator. Applied as a preventative, it must be used before the anticipated fly challenge. Not designed to cure existing strike. Dose rate: 20ml to 35ml. 5 litres treats up to 250 animals. For use in sheep. POM-VPS.

Please Note: Applicator gun to be used only with Clik Insect Growth Regulator Pour On.

Below is the product datasheet. This has been provided by the manufacturer and should always be provided with the medication.


Company name: Novartis Animal Health UK Ltd
Address: Frimley Business Park
GU16 7SR
Telephone: 01276 694402
Fax: 01276 694403


CLiK POUR-ON is a water-based, ready-to-use, pour-on formulation, containing 5% w/v dicyclanil.


Prevention of blowfly strike due to Lucilia sericata on sheep.
Prevention of blowfly strike due to Wohlfahrtia magnifica on sheep.

Dosage and administration

For external use only.
CLiK is applied according to the following recommendations:

Sheep weight (kg) Total volume/ sheep (ml) No. doses per 2.2L pack No. doses per 5L pack
10-20 20 110 250
21-30 25 88 200
31-50 30 73 166
>50 35 62 142

(Guide dose volumes correspond to 0.6 - 2 ml (30 - 100 mg dicyclanil) per kg bodyweight.)
Shake the container well before use.
CLiK must be applied with a manual or automatic dosing gun (e.g. Novartis Pour-on gun), with a spray nozzle, which will ensure 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.
CLiK is administered once, before predicted Wohlfahrtia fly activity, or before or at the beginning of Lucillia fly activity. CLiK will protect against blowfly strike caused by Wohlfahrtia or Lucillia 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.
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.
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, as the resulting wash-out may reduce the protection period.
The use of CLiK has harmful effects on dung flies.
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.

Contra-indications, warnings, etc

Special precautions to be taken by the person administering the veterinary medicinal product to animals
Operators should wear synthetic rubber gloves, a face mask and PVC trousers when applying the 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 rinse eyes with clean water for several minutes and contact physician for advice.
In case of ingestion call for medical advice.
Always wash hands with soap and water after handling sheep and before eating and drinking or smoking.
Wash hands and exposed skin after working with recently treated sheep.
Do not eat, drink or smoke whilst using the product.
Handling sheep in the weeks following treatment:
Do not shear sheep in the 3 months after treatment.
Handle sheep as little as possible after treatment as residues remain on the fleece for some weeks.
If you need to handle sheep after treatment, wear coveralls and Wellington boots. If sheep are wet also wear waterproof trousers and coat.
Use during pregnancy, lactation or lay
The safety of the veterinary medicinal product has not been established during pregnancy or lactation. Use only accordingly to the benefit / risk assessment by the responsible veterinarian. Laboratory studies in rats and rabbits have not shown any evidence of a teratogenic, foetotoxic or maternotoxic effects.
Withdrawal period(s)
Meat and offal: 40 days
Not permitted for use in lactating animals producing milk for human consumption.

Pharmaceutical precautions

Special precautions for storage and disposal
Protect from direct sunlight.
Protect from frost.
Store in the original container.
Keep the container tightly closed.
Any unused product or waste material should be disposed of in accordance with national requirements.
CLiK should not enter water courses as this may be dangerous for fish and other aquatic organisms.
Keep out of reach and sight of children.

Legal category


Packaging Quantities

0.8, 2.2 or 5.0 litres in high density polythylene backpack container.

Further information

Dicyclanil is a potent insect growth inhibitor belonging to the pyrimidinamine group. The suspending liquid is largely water. CLiK contains a scourable, red dye, which helps identify treated sheep. The formulation is non-corrosive and non-flammable.
For external use only.
Do not use in cases of hypersensitivity to the active substance or any of the excipients.

Marketing authorisation number

Vm 12501/4054.

Need help or advice? Contact us:

  • Landline: 01582 842096
  • Mon - Fri: 8:30am - 5:00pm
  • Sat: 9:00am - 1:00pm (Collections only)
  • Email: [email protected]

All prices include VAT where applicable.

Delivery Information

How quickly do you deliver?

Under almost all products on our website is an Estimated dispatch time, check this for a delivery prediction specific to the item you are looking to purchase. These badges are updated live based on the stock levels we have and also those of our suppliers - so are usually very accurate, but cannot be guaranteed. In more general terms, we aim to dispatch all orders within 1 working day of receiving payment (and a prescription if required). If we cannot do so within 3 working days we will contact you by email.

What do you charge for delivery?

For UK delivery, we charge the following:

Order Total Weight Delivery
£0-£28.99 Under 2kg £2.99
2kg+ £4.99
£29-£38.99 Under 2kg Free
2kg+ £4.99
£39+ Under 2kg Free
2kg+ Free

Prices quoted are for delivery to all parts of mainland UK except certain Scottish postcodes (where the price is higher for items sent by courier. Delivery of food abroad (including Channel Islands, N. Ireland and other islands around the UK) is charged at a higher price and free delivery is not available. Temperature controlled products are also not always subject to the standard and/or free delivery options.

For full information on our delivery charges, including prices on heavy deliveries to Scotland and abroad, see our delivery information page.

We can deliver most items to all around the world, but prices do vary. To find the exact cost of shipping your item, and to see all options available, follow these steps:

  1. Put the items you wish to order in your basket
  2. Proceed to checkout and enter your delivery address, including country
  3. Delivery information including price will automatically update to what is available to you

Delivery of aerosols

Due to restrictions aerosols can't be sent by Royal Mail. We appreciate your understanding.

Delivery of temperature controlled items

Some products, such as non-ambient items and frozen food, need to be delivered in insulated packaging to prevent them from getting too warm (or too cold) during transit from us to you. Purchasing any of these items in your order will result in a £1.99 charge being added to the total to cover the high cost of the insulated packaging materials. You only pay the £1.99 once per order, regardless of how many temperature controlled items you purchase in that order.

How do I cancel or return an order?

Please call us as soon as possible if you need to amend or cancel an order on 01582 842096. If your order has been processed for dispatch we will be unable to cancel or amend the order. You will however be able to return your product for a full refund*.

To return an item, you must contact us by phone or email to arrange this BEFORE posting any product back to us. We will explain the process at this stage for you.

*For full details on returns, see our terms and conditions page.

Reviews (1)

Q & A

Below are some recent questions we've received regarding Clik Insect Growth Regulator Pour On, including answers from our team.

3 August 2019 at 2:00pm

Use by date?

Kathy Wilkinson

  • VioVet customer since 2014
  • From: Somerset, United Kingdom

I only have a small flock, if I don't use all the contents can i keep it for next year?

  • Veterinary Advisor

Yes. Shelf life after first opening the immediate packaging is 1 year.