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Butox Pour-On (Deltamethrin)
Butox Pour-On (Deltamethrin)
Butox Pour-On (Deltamethrin)
Butox Pour-On (Deltamethrin)
Butox Pour-On (Deltamethrin)

Butox Pour-On (Deltamethrin)

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This product is only licensed for sale in the Republic Of Ireland

Butox 7.5 mg/ml Pour-on suspension is a ready to use pour-on insecticide used in the treatment and control of sucking lice, biting lice, keds and flies on sheep and cattle. 

Active Ingredient: Deltamethrin

Target Species: Cattle, sheep

Treats and Controls: Sucking lice, biting lice, keds and flies

Administration Method: Pour On

Withdrawal Time: 18 days for cattle intended for meat and offal, 12 hours for cattle producing milk for human consumption. 48 hours for sheep intended for meat and offal, 12 hours for sheep producing milk for human consumption

Dosage for lice and keds treatment: 10 ml per animal irrespective of weight.

Dose Volume Number of full doses per pack
250ml 1 Litre 2.5 Litre
10 ml 25 100 250

Dosage for flies on calves and cattle: 10ml per 100kg Bodyweight up to 300 kg

Body Weight Dose Volume Number of full doses per pack
250 ml 1 Litre 2.5 Litre
up to 100kg 10 ml 25 100 250
100-300 kg 20 ml 13 50 125
over 300 kg 30 ml 8 33 53

Always read the label and all enclosed information for Butox 7.5 mg/ml Pour-on before administering to animals!

The active ingredient in Butox 7.5 ml/mg Pour-on is Deltamethrin which is a highly effective and powerful insecticide but is also safe to use on livestock. Compared to other insecticides that are safe to use on livestock, such as Permethrin and Cypermethrin, Deltamethrin (the active ingredient in Butox 7.5 ml/mg Pour-on) is far superior at neutralising insects. The table below shows the effect each insectiside has on the simple house fly.


What are the advantages of using Butox 7.5 mg/ml Pour-on?

  • The unique formula enables the treatment to spread easily over the body of the treated animal
  • The formula is highly lipophilic which means it blends with the animals natural oils to provide a longer lasting treatment.
  • Butox 7.5 mg/ml Pour-on is rainfast
  • It can be applied straight from the bottle


What effects to flies have on my livestock?


Stable Fly: Can reduce milk production in dairy cattle and have a great impact on the weight gain of beef cattle.
Face Fly: Can transmit bacteria among livestock and has been associated with pink eye
Head Fly: Has been linked to summer mastitis
Midges: Can spread bluetongue virus and scmallenberg virus

Features of Butox 7.5 mg/ml Pour-on

  • Ready to use pour-on insecticide 
  • Treats and control sucking lice, biting lice, keds and flies on sheep and cattle. 
"Whack Flies With Butox Pour-on"
This Product is only licensed for sale in the Republic of Ireland

Click here to Download Data Sheet

Summary of Product Characteristics

Butox 7.5 mg/ml Pour On Suspension.

Each ml contains:
Active Substance
Deltamethrin 7.50 mg
Formaldehyde 35 % solution 0.19 mg
Propylene glycol 160.0 mg
For the full list of excipients see section 6.1.

Pour-on suspension.

4.1 Target Species
Cattle and Sheep.

4.2 Indications for use, specifying the target species
Prevention and treatment of cattle flies.
Prevention and treatment of cattle and sheep lice.
Prevention and treatment of sheep keds.

4.3 Contraindications
Do not use in case of known hypersensitivity to the active substance or to any of the excipients.

4.4 Special warnings for each target species
Cases of resistance to deltamethrin have been reported in parasites of cattle and sheep. Use of this product should be based on local (regional, farm) epidemiological information about parasite susceptibility to deltamethrin.


4.5 Special precautions for use
Special precautions for use in animals


Special precautions to be taken by the person administering the veterinary medicinal product to animals
Do not eat, drink or smoke while using the product.
Wash hands and exposed skin before meals and after work.
Avoid contact with skin, eyes and mucous membranes, and oral uptake.
Wear impervious gloves.
Change heavily contaminated clothes and wash before re-use.
In case of skin contact, wash the exposed parts thoroughly with water and soap.
In case of eye or mucous membrane contact, immediately rinse thoroughly with water.

People with known hypersensitivity to the product or one of its components should avoid contact with the product. If
you feel unwell after the use of the product, seek medical advice immediately and show the package leaflet or the label to the physician.

Environmental precautions
Deltamethrin must not enter surface water as it is toxic to fish and other aquatic organisms.

4.6 Adverse reactions (frequency and seriousness)
Hypersensitivity reactions can occur. In very rare cases following treatment, skin irritation with restlessness, heads
tossing and tail flicking has been observed.
The frequency of adverse reactions is defined using the following convention:
 very common (more than 1 in 10 animals displaying adverse reaction(s) during the course of one treatment)
 common (more than 1 but less than 10 animals in 100 animals)
 uncommon (more than 1 but less than 10 animals in 1,000 animals )
 rare (more than 1 but less than 10 animals in 10,000 animals)
 very rare (less than 1 animal in 10,000 animals, including isolated reports).

4.7 Use during pregnancy, lactation or lay
No restrictions apply for use during pregnancy and lactation.

4.8 Interaction with other medicinal products and other forms of interaction
Some organo-phosphorous insecticides can reduce metabolism rate and thus enhance Deltamethrin toxicity. Therefore, it is not advisable to use in association with organo-phosphate insecticides.

4.9 Amounts to be administered and administration route
Route: For external topical use.
Apply the recommended dose by pouring it along the animals spine from the base of head to the tail.
For sheep, it is recommended that the fleece is parted during administration.

One single application is generally enough for 8-10 weeks protection, but in cases of heavy infestation it may be
necessary to repeat the treatment after 4-6 weeks. All in contact animals must be treated at the same time.

One single application provides protection against flies for 6-10 weeks depending on the degree of infestation, fly
species and weather conditions.

4.10 Overdose (symptoms, emergency procedures, antidotes), if necessary
Overdose of twice the recommended treatment dose does not induce any adverse effects.

4.11 Withdrawal Period(s)
Meat and offal:
Cattle: 18 days        Sheep: 48 hours

Cattle: 12 hours       Sheep: 12 hours

Pharmacotherapeutic group:
Pyrethrins and pyrethroids.

ATCvet Code:

5.1 Pharmacodynamic properties
Butox 7.5 mg/ml Pour-on is an ectoparasiticide whose active ingredient
Deltamethrin belongs to the synthetic pyrethroids class.
Its mode of action concerns the neurotransmission involving sodium channels in the target parasite.

5.2 Pharmacokinetic properties
After dermal application, Deltamethrin is slightly absorbed through skin of cattle and sheep and remains available to
the target ectoparasite.
The main route of excretion of the absorbed amount in the target animal is the faeces.
In terms of residues, fat is the target issue.



6.1 List of excipients
Dispersing agent SI*
Sodium Laurylsulfate
Precipitated silica
Antifoam (Rhodorsil 416)
Antifoam (Rhodorsil 426R)
Xanthan Gum
Citric AcidMonohydrate
Formaldehyde 35% solution
Propylene Glycol
* A mixture of a condensation product of arylsulfonate and aldehyde, and alkylether sulfate and silicic acid.

6.2 Incompatibilities
None known.

6.3 Shelf-life
Shelf-life of the veterinary medicinal product as packaged for sale: 36 months.

6.4 Special precautions for storage
Do not store above 25°C.

6.5 Nature and composition of immediate packaging
High density polyethylene translucent dosing flasks, closed by two screw caps fitted internally with a compressible wad, containing 250 ml or 1 litre of pour-on.

2.5 litre portable polyethylene bottle closed with a polypropylene stopper fitted with a heat-sealable aluminiumpolyethylene seal (for use with an applicator gun).

Not all pack sizes may be marketed.

6.6 Special precautions for the disposal of unused veterinary medicinal products or waste materials
Dangerous to fish and other aquatic life.
Do not contaminate ponds, waterways or ditches with the product or empty container.
Any unused veterinary medicinal product or waste materials derived from such veterinary medicinal products should be disposed of in accordance with local requirements.

Intervet Ireland Limited,
Magna Drive
Magna Business Park
Citywest Road
Dublin 24

VPA: 10996/103/001

30th September 2009

March 2014


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

Cattle Pour-ons
These should be applied along the length of the flattest part of the animal’s back, from the withers to the tail head.
In general, animals should not be treated when the hair is wet or if rain is anticipated within two hours of treatment. However, some products are waterproof and can be used on wet animals.
Areas of damaged skin should be avoided, as should areas contaminated with mud or manure


What is deltamethrin?

Deltamethrin is an insecticide belonging to the pyrethroid family.
Pyrethroids are the man-made versions of pyrethrins, natural insecticides from chrysanthemum flowers.

Deltamethrin was first described in 1974 and entered the marketplace in 1978.
Deltamethrin is in a variety of products used to kill a wide range of insects.

How does deltamethrin work?

Deltamethrin can kill insects by direct contact or if they eat it.
It disrupts their normal nervous system function.
It is less toxic to mammals due to their higher body temperature, larger body size, and decreased sensitivity to the  chemical.

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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