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AVM-GSL Over the Counter Companion Animal

DIXIE 268 mg Spot-on Solution for Large Dogs

Active ingredient: Fipronil

Form

Spot-on

Species

Dogs

Manufacturer

Química de Munguía S.A. (Quimunsa)

VMD MA No.

45883/4009

What it's used for

Treatment of flea (Ctenocephalides felis) infestations and prevention of re-infestation with fleas through insecticidal effect for up to 5 weeks. One appli...

Full indications, dosage and side effects ↓
View official SPC (PDF)

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Paying less for Fipronil

  1. 1

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    They must provide one on request. Under the CMA Order the fee is capped at £21 from 2027.

  2. 2

    Fill it at a registered online retailer

    The CMA found online pharmacies 50–60% cheaper than practice dispensing on common medicines — typically £200–£300 a year.

Clinical information

DIXIE 268 mg Spot-on Solution for Large Dogs — SPC Details

Source: VMD Summary of Product Characteristics (SPC). Last updated 18 Mar 2026.

Treatment of flea (Ctenocephalides felis) infestations and prevention of re-infestation
with fleas through insecticidal effect for up to 5 weeks. One application provides
immediate and persistent insecticidal efficacy and prevents new infestations by fleas
up to a maximum of 5 weeks.
The product prevents new infestations of ticks from day 9
to day 23 after product application. The product has not demonstrated an immediate
acaricidal effect, if ticks of these species are present when the product is applied, all
the ticks may not be killed within the first 48 hours but they may be killed within a week.
The product can be used as part of the strategy in the treatment of flea allergy
dermatitis (FAD), where this has been previously diagnosed by a veterinarian.

Revised: November 2023
AN: 02034/2023
Route of administration – Spot-on use.
Dosage –
1 pipette of 2.68 ml per dog weighing over 20 kg and up to 40 kg bodyweight
For dogs over 60 kg use two pipettes of 2.68 ml
Method of administration
Hold upright. Tap the narrow part of the pipette to ensure the contents are within the
main body of the pipette.
Break back the snap-off top from the spot-on pipette along the scored line. Part the
coat between the shoulder blades until the skin is visible. Place the tip of the pipette
on the skin and squeeze gently at one or two spots to empty its contents onto the skin.
Care should be taken to avoid excessive wetting of the hair with the product since this
will cause a sticky appearance of hairs at the treatment spot. However, should this
occur, it will disappear within 24 hours post application.
In the absence of safety studies, the minimum treatment interval is 4 weeks.
In the absence of available data, the product should not be used in puppies less than
8 weeks of age (and/or weighing less than 2kg).
Do not use on sick (systemic diseases, fever…) or convalescent animals.
Do not use in rabbits, as adverse reactions and even death could occur.
This product is specifically developed for dogs. Do not use in cats, as this could lead
to overdosing.
Do not use in cases of hypersensitivity to the active substance or to any of the
excipients.
If licking occurs, a brief period of hypersalivation may be observed due mainly to the
nature of the carrier. Transient cosmetic effects such as a wet appearance or hair
clumping may occur at the application site.
Among the very rare suspected adverse reactions, transient cutaneous reactions at
the application site (skin discoloration, local alopecia, pruritus, erythema, capillary
bleeding) and general pruritus or alopecia have been reported after use. Exceptionally,
hypersalivation, reversible neurological signs (hyperaesthesia, depression, nervous
signs), vomiting or respiratory signs have been observed after use.
The frequency of adverse reactions is defined using the following convention:
- very common (more than 1 in 10 animals treated displaying adverse reaction(s))
- common (more than 1 but less than 10 animals in 100 animals treated)

Revised: November 2023
AN: 02034/2023
- uncommon (more than 1 but less than 10 animals in 1,000 animals treated)
- rare (more than 1 but less than 10 animals in 10,000 animals treated)
- very rare (less than 1 animal in 10,000 animals treated, including isolated reports).
Do not overdose.
The risk of adverse effects may increase in cases of over-dose.
The product does not prevent ticks from attaching to the animals. Therefore, the
transmission of infectious diseases by ticks cannot be excluded. There is no data
available on the effect of bath / shampoo on the efficacy of the veterinary drug in dogs.
Bathing / shampoo applied before or often after treatment may reduce the
effectiveness of the product.
Fleas from pets often infest the animal's basket, bedding and regular resting areas
such as carpets and soft furnishings which should be treated, in case of massive
infestation and at the beginning of the control measures, with a suitable insecticide and
vacuumed regularly.
When used as part of a strategy for the treatment of Flea Allergy Dermatitis, monthly
applications to the allergic patient and to other dogs in the household are
recommended.
To reduce re-infestation from emergence of new fleas, it is recommended that all dogs
in a household be treated. Other animals living in the same household should also be
treated with a suitable product.
The product will prevent new tick infestations from day 9 to day 23 after application of
the product. Considering that it takes 9 days to reach sufficient efficacy, there may be
gaps in the prevention of re-infestations after subsequent applications of the product.

Special precautions for use in animals
For external use only. Do not apply the product on wounds or damaged skin.
Avoid contact with the animal’s eyes. In case of accidental eye contact immediately
and thoroughly flush the eyes with water.

Animals should be weighed accurately prior to treatment (see section 4.3).
It is important to make sure that the product is applied to an area where the animal
cannot lick it off, and to make sure that animals do not lick each other following
treatment.

Revised: November 2023
AN: 02034/2023
The potential toxicity of the product for puppies less than 8 weeks of age in contact
with a treated bitch is not documented. Special care should be taken in this case.
Special precautions to be taken by the person administering the veterinary medicinal
product to animals
This product may cause neurotoxicity. Keep stored pipettes in the original packaging
until ready to use. In order to prevent children from getting access to used pipettes,
dispose of used pipettes immediately.
People with a known hypersensitivity to fipronil or any of the excipients should avoid
contact with the veterinary medicinal product.
This product can cause mucous membrane and eye irritation. Therefore, contact of the
product with mouth and eyes should be avoided. In case of accidental ocular exposure
or irritation of the eyes during administration, these should be rinsed immediately and
thoroughly with plain water. If eye irritation persists, seek medical advice immediately
and show the package leaflet or the label to the physician.
Avoid contents coming into contact with the fingers. In case of dermal exposure, wash
immediately with soap and water.
Wash hands after use.
Do not smoke, drink or eat during application.
Treated animals should not be handled, and children should not be allowed to play
with them until the application site is dry. It is therefore recommended that animals are
not treated during the day, but should be treated during the early evening, and that
recently treated animals should not be allowed to sleep with owners, especially
children.
Other precautions
Fipronil may adversely affect aquatic organisms. Dogs should not be allowed to swim
in watercourses for 2 days after application.
Do not use simultaneously with other flea products which are applied directly onto the
animal.
This veterinary medicinal product does not require any special storage conditions
Not applicable.
5.

This information is sourced from the official Summary of Product Characteristics (SPC) published by the Veterinary Medicines Directorate (VMD). It is provided for informational purposes only and does not replace professional veterinary advice. Always consult your vet before administering any medication.

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