Johnson's Fipronil Spot-On for Cats

Johnson's Fipronil Spot-On for Cats
3 x Vials

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  • 3 x Vials £10.00
  • 6 x Vials £18.49
  • Single Vial £4.90

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£4.90 to £18.49


Johnson's Fipronil Spot-On is used to treat and control infestations of fleas and ticks on cats. Once applied it can produce immediate effects and persistent activity on for up to 5 weeks, while ticks will be killed within 48 hours.


  • Veterinary strength flea control
  • Contains same active ingredient as the market leader
  • For the treatment of fleas and ticks
  • Fast acting - fleas are killed within 24 hours; ticks are
    killed within 48 hours
  • Long-lasting - Effective against fleas for up to 5 weeks
  • Use on cats and kittens from 8 weeks old


The active ingredientis Fipronil (50 mg per pipette).

Other ingredients are: Butylhydroxyanisole (E320) and Butylhydroxytoluene (E321).

Do not use Johnson's Fipronil on

  • Kittens or cats weighing less than 1 kg
  • Kittens less than 8 weeks old
  • Sick or recovering animals
  • Rabbits–the active ingredient is known to be toxic to rabbits, and may even kill them
  • Animals known to have previously had a reaction to one of the ingredients
  • Kittens or cats that have already been treated with another flea control product
  • Kittens or cats that have been administered Johnson's Fipronil Spot On within the last 4 weeks

Directions for use

  • Hold the pipette 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 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 the contents onto the skin.

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 treated animals do not lick each other following treatment. 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. For the optimal control of fleas and ticks the treatment schedule can be based on the local epidemiological situation.

In the absence of safety studies, do not re-apply the product for a minimum of 4 weeks after treatment.

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All prices include VAT where applicable.

Reviews (9)

Summary of Reviews for Johnson's Fipronil Spot-On for Cats

Overall 4
Ease Of Use
Value For Money
Absence Of Side Effects
8 out of 9 (89%) customers would recommend this product.
5 stars (4 reviews)
4 stars (4 reviews)
3 stars (0 reviews)
2 stars (0 reviews)
1 stars (1 reviews)

Only verified purchasers of this product can leave a review.

45 yep
Verified Purchase

By on 7 March 2022

seems fine

Customer recommends this product

55 Spot on flea treatment
Verified Purchase

By on 29 December 2021

very good

Customer recommends this product

45 Quick and effective
Verified Purchase

By on 31 August 2021

Easy to use with no mess. Good value and effective

Customer recommends this product

45 Easy to use
Verified Purchase

By on 7 September 2020

I have used this product in the past but then found it difficult to find. My cat doesn't mind me using this as it doesn't have a strong smell with it - with others , she'll run off even before I have opened the pippette!

Customer recommends this product

1 person found this review helpful

45 Effective and reasonably priced
Verified Purchase

By on 19 May 2019

Very good and easy to use

Customer recommends this product

1 person found this review helpful

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Q & A

Below are some recent questions we've received regarding Johnson's Fipronil Spot-On for Cats, including answers from our team.

13 September 2021 at 7:37pm

Flea eggs


does this product kill flea larvae /eggs ?

  • VioVet Staff

This spot on contains Fipronil which will kill adult fleas. It will not kill larvae/eggs but it will do this when they emerge as adults. Only environmental flea sprays may do this, I strongly advise treating your house too if an infestation is present. Our blog has more information, linked here.

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