Effipro Duo 100 mg/120 mg Spot-on Solution for Very Large Cats
Active ingredients: Fipronil, Pyriproxyfen
Form
Spot-on
Species
Manufacturer
VIRBAC
VMD MA No.
05653/3059
What it's used for
Against fleas: Treatment and prevention of infestations by fleas One treatment prevents further infestations for 5 weeks. Prevention of the multiplication...
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Effipro Duo 100 mg/120 mg Spot-on Solution for Very Large Cats — SPC Details
Source: VMD Summary of Product Characteristics (SPC). Last updated 27 Mar 2026.
Treatment and prevention of infestations by fleas One
treatment prevents further infestations for 5 weeks.
Prevention of the multiplication of fleas by preventing flea eggs developing into adult
fleas for 12 weeks after application.
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.
Against ticks:
Treatment of infestations by ticks (Ixodes ricinus and Rhipicephalus turanicus).
One treatment provides persistent acaricidal efficacy for one week.
If ticks are present at the time of application, not all ticks may be killed within 48 hours.
For a cat weighing more than 6 kg apply one pipette of 1 ml per cat corresponding to
the minimum recommended dose of 8.3 mg fipronil/kg b.w. and 10 mg pyriproxyfen/kg
b.w..
The recommended dose of 1 ml can also be achieved by applying two 0.5 ml pipettes.
Cat weightPipette volumeFipronil (mg)Pyriproxyfen (mg)>6-12 kg1 ml100120
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 coat on the back of neck area until the skin is visible. Place the tip of the
pipette on the skin and squeeze firmly several times to empty the contents evenly at
one or two spots. Ensure the solution is applied to healthy skin only and avoid
superficial application to the cat’s hair or run off, especially in large cats (over 6 kg).
Drop stop system (the veterinary medicinal product is released only by pressing the
body of the pipette).
Consult your veterinary surgeon if the veterinary medicinal product fails to control the
flea and tick infestation. However, in the absence of additional safety studies, do not
repeat the treatment at intervals of less than 4 weeks (see section 3.10).
Do not use in cases of hypersensitivity to the active substances or to any of the
excipients.
Very rare (<1 animal
/ 10,000 animals
treated, including
isolated reports):
Application site reaction
(e.g. Application site greasy fur
,
Application site scaling
2,3
, Application site skin squamosis,
Application site alopecia, Application site pruritus,
Application site erythema, Application site skin
discolouration)
Generalised itching, Alopecia
Hypersalivation, Vomiting
Neurological disorder
(e.g. Hyperaesthesia, Central
nervous system depression, Neurological symptoms)
Respiratory signs
Transient
Cosmetic effect
Slight
Reversible
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.
application and twice during the claimed period of efficacy against fleas (at two week
intervals against adult fleas or four week intervals against developing flea stages) was
investigated during two laboratory studies. Wetting of the haircoat with water as
described did not adversely affect veterinary medicinal product effectiveness.
The impact of shampooing on veterinary medicinal product effectiveness has not been
investigated. If a cat requires shampooing it is recommended that this is done before
applying the veterinary medicinal product.
At the beginning of the control measures, in the case of an infestation, the animal's
basket, bedding and regular resting areas such as carpets and soft furnishings should
be treated, with a suitable insecticide and vacuumed regularly.
To reduce environmental flea challenge, all animals living in the same household
should also be treated with a suitable flea control veterinary medicinal product.
The veterinary medicinal product does not prevent ticks from attaching to animals. If
the animal has been treated prior to exposure to the ticks, the ticks will be killed within
48 hours after attachment. This will usually be prior to engorgement, minimising but
not excluding the risk of transmission of diseases.
Once dead, ticks will often drop off the animal. Any remaining ticks should be carefully
removed, ensuring that their mouth parts are not left within the skin.
Special precautions for safe use in the target species:
For external use only. Do not administer orally.
Animals should be weighed accurately prior to treatment.
The safety of the veterinary medicinal product has not been established in cats
younger than 10 weeks of age or in cats weighing less than 1.0 kg.
Avoid contact with the animal’s eyes. In the case of accidental eye contact, flush the
eyes with water.
Care should be taken to apply the veterinary medicinal product correctly as
described under section 3.9. Do not apply the veterinary medicinal product on
wounds or damaged skin. It is important to make sure that the veterinary medicinal
product is applied directly onto an area of dry skin where the animal cannot lick it off
and to make sure that animals do not lick each other following treatment.
The use of the veterinary medicinal product has not been studied in sick or debilitated
cats.
Consult your veterinary surgeon before using the veterinary medicinal product if your
cat is unwell or currently receiving any other veterinary treatment.
Inform your veterinary surgeon that you are using this veterinary medicinal product if
s/he provides your cat with any other medication.
Seek veterinary advice if the veterinary medicinal product is accidentally ingested or
comes into contact with your animal’s eyes.
In the absence of additional safety studies, do not repeat the treatment at intervals of
less than 4 weeks.
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.
Do not smoke, drink or eat during application.
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.
Avoid contact with skin, eye and mouth, including hand to eye contact.
In the case of accidental skin or eye contact, immediately and thoroughly flush with
water. If skin or eye irritation persists, seek medical advice and show the package
leaflet or the label to the physician.
Wash hands after use.
Treated animals should not be handled until the application site is dry, and 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.
Keep the pipettes in the original packaging until ready for use and dispose of used
pipettes immediately.
Special precautions for the protection of the environment:
Not applicable.
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.
on to the animal.
Store in a dry place.
Keep the blister pack in the outer carton in order to protect from light.
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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Other Products Containing Fipronil
These products share the same active ingredient and may be suitable alternatives. Always consult your vet.
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