Fiprex M 150 mg Spot-on Solution for Dogs
Active ingredient: Fipronil
Form
Spot-on
Species
Manufacturer
Vet-Agro Trading Sp. Z o.o.
VMD MA No.
41715/3001
What it's used for
The veterinary medicinal product shows immediate insecticidal effect and persistent insecticidal activity against new infestations by adult fleas for up to...
Full indications, dosage and side effects ↓The prescription itself has a price. See what practices near you charge for a consultation and the written prescription fee.
Paying less for Fipronil
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1
Ask your vet for a written prescription
They must provide one on request. Under the CMA Order the fee is capped at £21 from 2027.
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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.
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Fiprex M 150 mg Spot-on Solution for Dogs — SPC Details
Source: VMD Summary of Product Characteristics (SPC). Last updated 27 Mar 2026.
insecticidal activity against new infestations by adult fleas for up to 8 weeks.
The veterinary medicinal product has a persistent acaricidal efficacy against
Rhipicephalus sanguineus and Dermacentor reticulatus for up to 4 weeks. If ticks of
these species are present when the veterinary medicinal product is applied, all ticks
will not be killed within the first 48 hours but they may be killed within a week.
The veterinary medicinal product can be used as part of a treatment strategy for the
control of Flea Allergy Dermatitis (FAD) where this has been previously diagnosed by
a veterinary surgeon.
AN: 01237/2025Page 2 of 7
Animals should be weighed prior to treatment. To ensure a correct dosage, body
weight should be determined as accurately as possible.
Method of administration:
Open the pipette by tearing off the tip. Part the fur between the shoulder blades and
apply the pipette content onto the animal’s skin.
If necessary, administer the veterinary medicinal product to more than one spot
between the shoulder blades to minimise the chances of run-off and to ensure the
whole dose is administered.
In the absence of safety studies, the minimum treatment interval is 4 weeks.
The current epidemiological situation in the area concerned should always be taken
into account.
Following the manufacturer’s instructions and warnings will reduce to a minimum the
possibility of occurrence of adverse reactions.
It is important to make sure that the veterinary medicinal 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.
Care should be taken to avoid excessive wetting of the hair with the veterinary
medicinal 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.
Do not use in sick (systemic disease, fever etc.) or convalescent animals.
Do not use in rabbits, as adverse drug reactions and even death could occur.
This veterinary medicinal product has been developed specifically 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.
Do not apply on damaged skin of the animal.
Undetermined frequency
(cannot be estimated from the
available data)
Application site hair coat discolouration,
Application site hair loss, Application site itching,
Application site irritation, Application site greasy fur
Hypersalivation
, Vomiting
Neurological disorders(Lethargy, Hypersensitivity)
1
May occur if the animal licks the application site.
Reporting adverse events is important. It allows continuous safety monitoring of a
veterinary medicinal product. Reports should be sent, preferably via a veterinarian, to
either the marketing authorisation holder or its local representative or the national
competent authority via the national reporting system. See the package leaflet for
respective contact details.
AN: 01237/2025Page 4 of 7
All cats and dogs in the household should undergo the treatment.
No data on the effect of bathing/shampooing on the efficacy of the veterinary
medicinal product in dogs are available. Therefore, bathing/immersion in water within
2 days of application and more frequent bathing than once a week should be
avoided.
There may be an attachment of some ticks but ticks will be killed in the first 24-
48 hours after attachment. This will be usually prior to full engorgement and therefore
minimising but not excluding the risk of transmission of diseases.
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.
For optimal control of flea infestation in multi-pet household, all dogs and cats in the
household should be treated with a suitable insecticide.
Special precautions for safe use in the target species:
For external use only.
It is important to make sure that the veterinary medicinal product is applied to an area
where the animal cannot lick it off. Do not allow recently treated animals to lick each
other.
Avoid contact with the animal's eyes. If the veterinary medicinal product come into
contact with the eyes, rinse thoroughly at once with water.
Animals should be weighed accurately prior to treatment.
Do not apply the veterinary medicinal product on wounds or damaged skin.
AN: 01237/2025Page 3 of 7
Special precautions to be taken by the person administering the veterinary medicinal
product to animals:
Keep pipettes in original packaging until ready to use.
People with a known hypersensitivity to fipronil or to any of the excipients should
avoid contact with the veterinary medicinal product.
Avoid contents coming into contact with the skin. In case of accidental skin contact,
wash hands with soap and water.
This veterinary medicinal product can cause mucous membrane and eye irritation.
Contact of the veterinary medicinal product with mouth and eyes should be avoided.
In case of accidental eye contact, immediately and thoroughly rinse the eyes carefully
with plain water. If eye irritation persists, seek medical advice and show the package
leaflet or the label to the physician.
Ingestion of the veterinary medicinal product is harmful. Prevent children getting
access to the pipettes and discard the used pipettes immediately after applying the
veterinary medicinal product. In case of accidental ingestion of veterinary medicinal
product, seek medical advice immediately and show the package leaflet or the label
to the physician.
Avoid contact with treated animals until the application site is dry. Children should not
be allowed to play with treated animals 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.
Do not smoke, drink or eat during application.
Wash hands after use.
Special precautions for the protection of the environment:
Veterinary medicinal product may adversely affect aquatic organisms. Dogs should
not be allowed to swim in watercourses for 2 days after application (see section 5.5).
Other precautions:
The veterinary medicinal product may have adverse effects on painted, varnished or
other household surfaces or furnishing.
Do not refrigerate.
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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Related Conditions
Other Products Containing Fipronil
These products share the same active ingredient and may be suitable alternatives. Always consult your vet.
Alfamed 2.5 mg/ml Cutaneous Spray, Solution for Cats and Dogs
POM-VAlfamed
Alfamed 2.5 mg/ml Cutaneous Spray, Solution for Cats and Dogs
POM-VAlfamed
Alfamed Fipronil 134 mg Spot-on Solution for Medium Dogs
NFA-VPSAlfamed
Alfamed Fipronil 134 mg Spot-on Solution for Medium Dogs
NFA-VPSAlfamed
Alfamed Fipronil 2.5 mg/ml Cutaneous Spray, Solution for Cats and Dogs
POM-VAlfamed
Alfamed Fipronil 2.5 mg/ml Cutaneous Spray, Solution for Cats and Dogs
POM-VAlfamed
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