VetPlus Switch Lotion for Horses

VetPlus Switch Lotion for Horses
250ml Bottle

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  • 250ml Bottle £43.99


Switch Lotion is a ready to use liquid solution to facilitate the maintenance of sweet itch in horses, ponies and donkeys. Easy to use thanks to a calibrated dispensing chamber found within the applicator bottle. Use Switch Lotion at the start of Sweet Itch season and repeated as and when needed.

4% w/v (4 g/100ml) Permethrin (cis:trans 80:20).

External pour-on liquid to aid control of Sweet Itch in horses & donkeys.

Switch is a ready to use solution that should be applied at a rate of 1 ml per 10 kg bodyweight to a maximum of 40 ml. Apply Switch using the calibrated dispesing chamber incorporated into the applicator bottle. Apply the measured dose in roughly equal portions to the mane and rump avoiding the saddle area. Treatment should be started at the beginning of the sweet itch season and repeated as necessary. If horses and donkeys are to be groomed, apply Switch after grooming.

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All prices include VAT where applicable.

Medication Datasheets

Reviews (33)

Summary of Reviews for VetPlus Switch Lotion for Horses

Overall 5
Value For Money
Pet's Opinion
32 out of 33 (97%) customers would recommend this product.
5 stars (26 reviews)
4 stars (6 reviews)
3 stars (0 reviews)
2 stars (0 reviews)
1 stars (1 reviews)

Only verified purchasers of this product can leave a review.

55 Amazing
Verified Purchase

By on 27 August 2022

This product has been great. My horse suffers with sweet-itch particularly on his legs with open wounds (his rugs cover the rest of him). I tried this, initially avoiding sores, and it kept the flies away. As there was nothing in the instructions about open sores I tried on this area too and now his sores have healed and he is a much happier horse. As it is a thin liquid for pouring it is very awkward to apply to legs but well worth the effort.

Customer recommends this product

45 Seems to be working
Verified Purchase

By on 8 August 2022

My gelding developed sweetitch this summer, and the heatwave exacerbated it. I have tried Switch on his mane and tail, and it certainly seems to have helped.

Customer recommends this product

55 switch
Verified Purchase

By on 18 July 2022

Very good use it on my pony who has sweetitch so far i havent had to put a rug on and she isnt rubbing

Customer recommends this product

55 It works!
Verified Purchase

By on 2 July 2022

Over the years I have tried different methods of dealing with my Icelandic horse’s sweet-itch .Switch is the only product which has left her virtually sweet-itch free. Well worth the money and easy to apply.

Customer recommends this product

55 Great Product
Verified Purchase

By on 22 April 2022

Brilliant.. since using Switch Lotion I no longer have to use a fly sheet or fly boots during Summer months.

Customer recommends this product

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Q & A

Below are some recent questions we've received regarding VetPlus Switch Lotion for Horses, including answers from our team.

21 April 2022 at 1:01pm


Amanda Baird

Does this product deter ticks?

  • VioVet Staff

Switch is licensed for the control of flying insects. The active ingredient within (permethrin) does kill ticks however Switch is not licensed and so not specifically proven to do this.

30 July 2021 at 9:42pm

Switch va Flypor

Em Bassom

  • VioVet customer since 2016
  • From: Hampshire, United Kingdom

Is switch the same as Flypor?

  • VioVet Staff

Flypor and Switch both contain permethrin however Switch is licensed in Horses and Flypor for Cattle.

10 July 2020 at 9:47pm



Would this help with the control of mites as well as help with the flys?

  • VioVet Staff

Switch contains permethrin which does kill mites, however it is not licensed to do so in this product. It therefore cannot be guaranteed to kill mites but theoretically it should help control them.

29 September 2018 at 8:39pm

How often should I reapply?

Andrea Walters

  • VioVet customer since 2018
  • From: Hertfordshire, United Kingdom

It says in the description to reapply when necessary, on average how often would this be? I don’t really want for him to start itching again before re application?

  • VioVet Staff


Thank you for getting in touch.

If need be this can be repeated weekly.

Hope that helps,


11 June 2018 at 5:05pm

Switch on mare


Can it be used on a mare that have a baby nursing?

  • VioVet Staff

Hello Caisa,

Thank you for your question.

This is safe to use providing you do not cover the area that the baby feeds from.

Hope that helps,


8 May 2016 at 12:29am

Can switch be used on pregnant mares?

Lana Spence

  • VioVet customer since 2015
  • From: Scottish Borders, United Kingdom

Can switch be used on pregnant mares to kill lice?

  • VioVet Staff

Yes this is acceptable. As long as you use it in accordance with the manufacturer's directions, it should be safe for a pregnant mare.

7 May 2016 at 12:13am

Horse with lice..


  • VioVet customer since 2016
  • From: North Ayrshire, United Kingdom

A new horse in the yard has a huge burden of lice. We are using liquid Switch, can you advise length of treatment and quarantine required please?


  • VioVet Staff

If one has a huge burden, any of the others may have a few and are acting as carriers. Complete elimination is best achieved by treating all in-contact horses as well. Treatment/quarantine continues for 2 weeks after no living lice can be found anywhere on any horse. It is possible just to treat the horse(s) which appear to have lice and eliminate them, but this is less reliable because some transfer of lice tends to occur without you being aware of it. I would have to wonder if the badly affected horse is in poor condition or has Cushing's disease or something. As a general observation, well groomed horses in good physical condition rarely suffer with lice, though they might have the odd one or two in the dense hair of the main etc. Immuno-compromised horses are more likely to suffer. Therefore as well as treating the lice, it is worth considering if the general health and grooming could be improved. There is plenty of good advice about this topic online and of course you can ask your vet too.

21 August 2015 at 7:26pm

Can Switch be used on broken skin


Pony had rubbed it mane and has a couple of damaged areas of skin on the mane. Can switch still be applied.

  • VioVet Staff

Switch can be used on broken skin and indeed it is usually applied to areas which are rubbed and prone to getting sore. It should not be applied to extensive wounds, but the sort of abrasions likely to be encountered are not a significant problem. Indeed in a way you have to try and do something to reduce the itching, or the wounds will get worse.

16 August 2015 at 6:08pm

Riding horse whilst using switch

john price

Can the horse be used for riding whilst using switch?

  • VioVet Staff

A horse can be worked as normal when Switch is used, this is completely fine.

15 July 2014 at 9:18am

Horses for Human Consumption

Sara Roberts

I'm wondering if this product can be used on horses intended for human consumption or not.

  • VioVet Staff

Switch should not be used on horses that are for human consumption.

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