Deosect for Horses
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  • (Delivery from £4.97 )
  • TVP £66.73
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Deosect is a topical spray to control flies and lice on horses.

Topical spray to control flies and lice on horses. Clear yellow liquid free from solids, containing Cypermethrin technical (cis 50: trans 50) 5.0% w/v (0.1% w/v when diluted).

Not to be used in animals intended for human consumption.

Avoid spraying directly into animal’s eyes. For external use only. 

Special precautions for use in animals Do not apply to any lesions where the skin is broken. Do not spray in or near milking parlours or where milking machinery may be contaminated.

This product belongs to the pyrethroid group. Possible undesirable effects can be irritation and allergic reactions on the skin.

The product can be safely used during pregnancy and lactation.

Amounts to be administered and administration route

Deosect must be diluted and mixed with water to make a solution just before use. A knapsack, hand sprayer or sponge may be used to apply the solution. The solution should be used within 24 hours. Avoid spraying directly into animal’s eyes. 

One litre of Deosect should be diluted with 50 litres of water. Alternatively, the following table may be used. 

Deosect Water 

10ml 500ml 

20ml 1 litre 

100ml 5 litre 

200ml 10 litre 

A medium fine spray is advisable to avoid fogging of the diluted Deosect. Careful attention must be paid to total animal coverage, especially the face, legs, back and hindquarters. The following amounts should be used. 

Adult horses -500 ml of diluted solution per animal 

Ponies -125 ml of diluted solution per animal


Fly control: The application of the solution should commence at the onset of the fly season and be repeated monthly for general fly control and every two weeks for severe head and face fly control. Lice control: Apply when lice are observed and repeat as necessary at a minimum interval of 14 days.

Legal Category: POM-VPS

Summary of Product Characteristics (SPC)

If you have changed your mind or accidentally bought the wrong item, you have 14 days to cancel after delivery of your order and we must receive the item within 14 days of your notification to cancel.

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