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Butox Swish 2.5L


Pour on suspension (each 100ml contains 0.75g of deltamethrin) for use in the control of biting and nuisance flies and biting and sucking lice of cattle.

Legal Category : POM-VPS

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All orders over £39 receive free delivery * *terms and conditions apply


Returns It should be noted that, unfortunately, we cannot accept returns of any labelled products, including prescription medicines and flea and worming products. If the customer has requested a cancellation but the order has already been dispatched then we will not be able to cancel and refund the order. This also applies if the customer has ordered the incorrect dosage. Returns of any labelled products are only acceptable if it is due to an error in processing, or for an official recall. We are also unable to accept the returns of Caninsulin syringes, even if the packaging is unopened.

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Dosage & Administration

Pour on the product along the backline of the animals, from the head to the tail, at the following recommended dose rates:

Control of biting & nuisance flies

  • Up to 100kg: 10ml
  • 100-300kg: 20ml
  • Over 300kg: 30ml

Control of biting & sucking lice

  • 10ml per animal irrespective of weight


  •  A single application provides protection against flies for 8 to 10 weeks depending on the infestation degree, fly species and weather conditions.
  • Treatment should be repeated within 8 – 10 weeks depending on the weather and the fly species.


  • A single application provides protection against lice for 8 to 10 weeks.
  • All in contact animals must be treated at the same time.
  • A single application is sufficient against lice.


Edible tissues – 20 days

Milk – zero hours