Xenex Ultra Spot On 6 Pack

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This is a specialist veterinary product. We will ask you a simple set of questions to confirm that you are buying the correct medicine for your pet and know how to use it safely

Warning: By law we cannot sell this product to anyone under 18, by placing an order with us you are confirming that you are over the age of 18.

Order by 3pm for Express Courier Delivery  Some of the items we sell are a bit too bulky to fit on our delivery vans so we offer our customers Next Day Delivery via courier. Deliveries are made from 8am - 8pm Monday to Saturday and 9am - 5pm on Sundays. Your delivery slot will only be confirmed once your order has been placed.

Xenex Ultra is a Permethrin based product which is formulated for the prevention and control of ectoparasite infections caused by fleas, lice and flies.  It can be used to treat and prevent infestations on rabbits, guinea pigs and rodents. A single application repels the flies that cause fly strike for up to 2 weeks.

Please note that Xenex Ultra should not be applied to cats or ferrets as Permethrin is toxic to these species.

Each packet contains 6 pipettes lasting up to 2 weeks each.

Topical insecticidal spot-on solution.

Xenex Ultra is a simple and effective way to keep your small pet reliably insect free. It contains permethrin, a tried and tested insecticide that also has excellent repellent activity. Permethrin kills fleas, ticks, lice and flies (adult and immature stages). It will also repel the flies that cause fly strike in caged pets.

Each tube of the easy to apply odourless solution will kill insects residing on your pet on contact and will continue to do so for up to 2 weeks. 

Product Information

Medicinal Category: Small animal exemption scheme (SAES).

This veterinary medicine is marketed in accordance with Schedule 6 of the Veterinary Medicines Regulations - Exemptions for Small Pet Animals.

If you have questions about the use of this veterinary medicine, please contact us at fetch@fetch.co.uk or speak to your vet. Further information about veterinary medicines can be obtained from the Veterinary Medicines Directorate

Full datasheet can be found here on NOAH Compendium.

As this is a veterinary medicine our Vet Team may on occasion contact you to ensure that this product is suitable for your pet.

Active ingredient

Each tube contains permethrin 744mg


Using the dosage table supplied, apply the correct number of drops or pipettes onto the back of the neck or base of tail.
It is recommended to use kitchen scales to accurately weigh your pet
In normal circumstances application every 2 weeks is sufficient, however, some individual animals are particularly prone to fly strike, and in these cases weekly application is advisable and is well tolerated.
Xenex Ultra should be used as part of an insect control programme. Ensure that your pet is kept in clean, dry housing which is free of faeces and urine.
Fly strike is caused by flies laying their eggs in the wet or sore areas, which can develop as a result of diarrhoea caused by poor diet and hygiene. Please
seek advice about the correct diet for your pet. Regularly check it for faeces soiling and bathe it if necessary.

Safety Advice

  • Read instructions carefully before use
  • Do not use in animals less than 16 weeks of age
  • Do not use in pregnant or lactating animals
  • Do not use on cats
  • Extremely poisonous to cats and to fish.Ensure that cats do not groom the site of application on a treated animal. If this occurs, separate the animals and consult a vet
  • Extremely dangerous to fish
  • Do not contaminate ponds, waterways or ditches with either product or packaging
  • Avoid contact with eyes. If splashed in the eye, wash with plenty of water
  • Wash hands after use. Wash off any splashes immediately.
  • Users carrying out multiple applications should wear protective gloves made of neoprene or nitrile of a minimum thickness of 0.3mm
  • Do not handle the area of application for 3-6 hours after treatment
  • Treated animals should not be allowed to sleep with people, particularly children