Johnson's 4 Fleas Protector 60 mg Spot-on Solution for Cats and Kittens
Active ingredient: Pyriproxyfen
Form
Spot-on
Species
Manufacturer
Alfamed
VMD MA No.
17902/4012
What it's used for
Prevention of flea multiplication (adult and larval stages of sensitive to pyriproxyfen) in cats by inhibiting egg development for 3 months.
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 Pyriproxyfen
-
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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Johnson's 4 Fleas Protector 60 mg Spot-on Solution for Cats and Kittens — SPC Details
Source: VMD Summary of Product Characteristics (SPC). Last updated 26 Mar 2026.
sensitive to pyriproxyfen) in cats by inhibiting egg development for 3 months.
per kg of bodyweight). This dosage may be achieved by applying one pipette of 0.6
ml for a cat weighing between 1 kg and 6 kg.
Johnson’s 4 Fleas Protector 60 mg for Cats and Kittens should be administered
directly on the skin of the animal, at the base of the neck. Care should be taken to
Revised: July 2012
AN. 01668/2011
maintain contact between the pipette and skin during the administration of the
product. Apply the contents by carefully squeezing the bottom of the tube 4 times.
A second application can be made 3 months after the first one to prolong efficacy for
a further 3 months.
Do not use if your cat is unwell or recovering from an illness.
application site (squamosis, local alopecia, pruritus, erythema) and general pruritus
or alopecia have been reported after use. Exceptionally, hypersalivation or vomiting
have been observed after treatment.
a flea comb.
In case several animals are part of the same household, appropriate treatment
should be carried out for each animal. As for any parasiticidal product, its frequent
Revised: July 2012
AN. 01668/2011
and repeated use may cause the development of parasite resistance to the active
ingredient.
Infestations occurring during the initial administration or appearing during the
treatment period may be eliminated with appropriate medicinal insecticides.
The influence of bathing or wetting immediately after treatment has not been
evaluated. Therefore, it is likely that the efficacy will be reduced if the animal is
wetted or shampooed immediately after the treatment.
(i) Special precautions for use in animals
For external use only.
(ii) Special precautions to be taken by the person administering the veterinary
medicinal products to animals
Avoid contact with skin and eyes. In case of accidental contact, rinse abundantly with
water.
In case of eye irritation, seek medical attention.
Wash hands after use.
pyrethroid compounds and pyriproxyfen.
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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Other Products Containing Pyriproxyfen
These products share the same active ingredient and may be suitable alternatives. Always consult your vet.
Ectoline Duo 100 mg / 120 mg Spot-on Solution for Very Large Cats
NFA-VPSAlfamed
Ectoline Duo 100 mg / 120 mg Spot-on Solution for Very Large Cats
NFA-VPSAlfamed
Ectoline Duo 134 mg / 40 mg Spot-on Solution for Medium Dogs
NFA-VPSAlfamed
Ectoline Duo 134 mg / 40 mg Spot-on Solution for Medium Dogs
NFA-VPSAlfamed
Ectoline Duo 268 mg / 80 mg Spot-on Solution for Large Dogs
NFA-VPSAlfamed
Ectoline Duo 402 mg / 120 mg Spot-on Solution for Very Large Dogs
NFA-VPSAlfamed
Alternative options to consider
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Flea & Tick Treatments for Cats
Vet-strength feline flea and tick treatments. Stronghold, Advocate, Frontline and more, dispensed by UK pharmacists.
Pet Flea Treatments at Pharmacy2U
Frontline, Advantage and own-brand flea treatments at pharmacy prices. Trusted UK pharmacy since 1999.
VetBox Flea & Worm Protection for Cats
Vet-founded monthly parasite subscription. Flea, tick and worm protection delivered to your door. Founded by Dr Will Woodley, protecting 30,000+ pets.
We may earn a small commission if you purchase through these links, at no extra cost to you.
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