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POM-V Prescription Required Companion Animal

Effitix 134 mg/1200 mg Spot-on Solution for Medium Dogs

Active ingredients: Fipronil, Permethrin (Cis:Trans 40:60)

Form

Spot-on

Species

Dogs

Manufacturer

Virbac

VMD MA No.

05653/3041

What it's used for

Fleas: Treatment and prevention of infestations by fleas are killed within 24 hours following treatment. One treatment provides persistent efficacy against...

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

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Prescription required

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Clinical information

Effitix 134 mg/1200 mg Spot-on Solution for Medium Dogs — SPC Details

Source: VMD Summary of Product Characteristics (SPC). Last updated 27 Mar 2026.

Fleas:
Treatment and prevention of infestations by fleas
are killed within 24 hours following treatment. One treatment provides persistent efficacy
against new infestations with adult fleas for four weeks. The veterinary medicinal product
can be used as part of a treatment strategy for the control of Flea Allergy Dermatitis (FAD)
where this condition has previously been diagnosed by a veterinarian.

Amended pages: July 2025
Ticks:
Treatment of infestations with ticks.
One application provides four weeks persistent acaricidal efficacy against tick infestations
(Ixodes ricinus, and Rhipicephalus sanguineus
If ticks of some species (Dermacentor reticulatus or ) are
present at the time of application, not all ticks may be killed within 48 hours.
Sand-flies and mosquitoes:
One treatment provides repellent (anti-feeding) activity against sand-flies (Phlebotomus
perniciosus) and against mosquitoes (Culex pipiens, Aedes aegypti) for four weeks.
Spot-on use.
Dosage:
The recommended minimum dose is 6.7 mg fipronil /kg b.w.and 60 mg permethrin/kg b.w.
Dog weightFipronil (mg)Permethrin (mg)1.5-4 kg26.8240>4-10 kg67600>10-20 kg1341200>20-40 kg2682400>40-60 kg4023600
For dogs > 60 kg the appropriate combination of pipettes should be used.
Method of administration:
Remove the pipette from the overblister. Hold the pipette upright. Tap the narrow part of
the pipette to ensure that the contents are within the main body of the pipette. Break the
snap-off top of the spot-on pipette along the scored line.
Part the pet’s coat until its skin is visible. Place the tip of the pipette directly against the
bared skin and squeeze gently several times to empty its contents at two to four different
points, depending on body weight, along the pet’s back from the shoulder to the base of
the tail.
As a guide, dogs under 20 kg should have the veterinary medicinal product applied in two
spots, whereas those over 20 kg should receive the veterinary medicinal product in 2-4
spots.
Drop stop system.
Treatment schedule:
The use of the veterinary medicinal product should be based on a confirmed infestation or
risk of infestation, with fleas and/or ticks when repellent (anti-feeding) activity is also
necessary against sand-flies and/or mosquitoes.
Depending on the ectoparasite challenge the responsible veterinary surgeon may
recommend repeating the treatment. The interval between two treatments should be at
least 4 weeks.

Amended pages: July 2025
Do not use in cases of hypersensitivity to the active substances or to any of the excipients.
Do not use in rabbits and cats as adverse reactions and even death can occur (see also
section 3.5).
Do not use in sick (e.g. systemic diseases, fever…) or convalescent animals.
Dogs
Very rare
(<1 animal / 10,000 animals
treated, including isolated
reports):
Application site Pruritus
, Application site
Erythema
Application site Alopecia
Generalised Itching
Hyperactivity, Agitation
Muscle tremor, Convulsion, Ataxia
Lethargy
Vomiting, Hypersalivation
1,2
Transient
If licking occurs
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.
The veterinary medicinal product remains effective after exposure to sunlight or if the
animal becomes wet after rain.
Avoid frequent swimming or shampooing of treated dogs as this may adversely affect
maintenance of veterinary medicinal product effectiveness.
A dog with fleas may show an allergic reaction to the flea saliva called Flea Allergy Dermatitis
(FAD). If your dog has inflamed skin, is itchy and bites, scratches excessively and is restless
and uncomfortable, you should seek the advice of a veterinarian to diagnose if your dog
suffers from FAD.
To reduce re-infestation from emergence of new fleas, it is recommended to treat all dogs
in a household. Other animals living in the same household should also be treated with a
suitable veterinary medicinal 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.
There may be an attachment of single ticks or bites by single sand-flies or mosquitoes. For
this reason, the transmission of infectious diseases by these parasites cannot be excluded
if conditions are unfavourable.
Studies have shown anti-feeding effect of four weeks for sand-flies and mosquitoes.
Therefore, for short-term travel (less than 4 weeks) to endemic areas it is recommended to
apply the treatment immediately before expected exposure. For longer-term exposure (e.g.
animals living in endemic areas or travel duration longer than 4 weeks), the treatment
schedule should be based on local epidemiological information.

Special precautions for safe use in the target species:
Animals should be weighed accurately prior to treatment.

Amended pages: July 2025
The safety of the veterinary medicinal product has not been established in dogs younger
than 12 weeks of age or in dogs weighing less than 1.5 kg.
Care should be taken to avoid the content of the pipette coming into contact with the eyes
or mouth of the recipient dogs. In particular oral uptake due to the licking of the application
site by treated or in-contact animals should be avoided.
This veterinary medicinal product is extremely poisonous to cats and could be fatal due to
the unique physiology of cats which is unable to metabolise certain compounds including
permethrin. In case of accidental dermal exposure, wash the cat with shampoo or soap,
and seek veterinary advice rapidly.
veterinary medicinal product, keep treated dogs away from cats after treatment until the
application site is dry. It is important to ensure that cats do not groom the site of
application on a dog, which has been treated with this veterinary medicinal product. In
case of exposure of this type, seek veterinary advice immediately if this occurs.
Do not use on rabbits and cats.
Special precautions to be taken by the person administering the veterinary medicinal
product to animals:
The veterinary medicinal product may cause neurotoxicity. The veterinary medicinal
product may be harmful if swallowed. Avoid ingestion including hand-to-mouth contact. In
case of accidental ingestion, seek medical advice immediately and show the package
leaflet or the label to the physician.
This veterinary medicinal product can cause eye and mucous membrane irritation.
Therefore, avoid contact between the veterinary medicinal product and the mouth or eyes
including hand-to-mouth and hand-to-eye contacts. In case of accidental contact between
the veterinary medicinal product and eyes, immediately and thoroughly flush the eyes with
water. If eye irritation persists, seek medical advice immediately
leaflet or the label to the physician.
Avoid contact with the skin. Should the veterinary medicinal product come into contact with
skin, wash the contacted area immediately with soap and water.
Wash hands thoroughly after use.
Do not eat, drink or smoke while handling the veterinary medicinal product.
People with known hypersensitivity (allergy) to fipronil, permethrin or any of the excipients
should avoid contact with the veterinary medicinal product, which, on very rare occasions,
can cause respiratory irritation and dermal reactions in certain individuals.
Should symptoms occur, seek medical advice immediately and show the package leaflet
or the label to the physician.
Treated animals should not be handled or played with until the application site is dry and
for about 12 hours after treatment. It is therefore recommended to treat the animals in the
early evening or late afternoon in order to minimise contact with the treated animal. On the
day of treatment, treated animals should not be permitted to sleep with their owner,
especially children.
Keep the stored pipettes in the original packaging. In order to prevent children from getting
access to used pipettes, dispose of used pipettes immediately in a proper way.

Amended pages: July 2025
Special precautions for the protection of the environment:
Fipronil and permethrin may adversely affect aquatic organisms. Dogs should not be
allowed to swim in water courses for 2 days after application.
Other precautions:
The veterinary medicinal product may have adverse effects on painted, varnished or other
household surfaces or furnishings. Allow the application site to dry before permitting
contact with such materials.
None known.

Amended pages: July 2025
Store below 30°C.
Keep the blister pack in the outer carton in order to protect from light
Not applicable.

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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