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How do flea injections work?
Pros
Cons
How to kill adult fleas
Monthly flea treatment
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Flea injections for cats and dogs
- By Sarah
-
- March 18, 2025
- 2 MIN READ
There are many many options for flea treatment these days, which can be overwhelming to say the least! Keep reading to find out about flea injections and whether it's the best choice for your pet.
How do flea injections work?
Flea injections typically contain insecticides Lufenuron which prevents flea eggs from developing into adult fleas. Administered by a qualified vet, these injections deliver the active ingredients directly into your pet's bloodstream.
Pros
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Lasting protection: Once injected, the active ingredients continue to provide protection against fleas for several weeks.
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Convenience: Since the injection is administered by a vet, there's no need for you to worry about application methods or dosage calculations.
Cons
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Doesn't kill adult fleas: The injection will only stop flea eggs turning into adult fleas, if your pet already has fleas, these will not be killed!
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Vet visit required: Flea injections necessitate a trip to the vets, which may not be suitable for pets with anxiety or travel-related stress.
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Expensive: Each injection usually costs around £50-75 (depending on your veterinary practice)
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Potential side effects: As with any medication, there's a risk of side effects, although they are typically rare and mild.
How to kill adult fleas
Itch Flea Treatment for dogs and Itch Flea Treatment for cats is a spot-on treatment which kills all adult fleas on your pet within 24 hours (and kills ticks and lice!). It also halts all other flea life stages and stops them developing into adult fleas - an all round, comprehensive flea treatment!
For full protection against those nasty fleas, it should be applied once a month, all year round - as prevention is always better than a cure! Although we associate fleas with those glorious warmer months, they are still very much present in winter so applying your flea treatment in winter is still just as important!
If you are battling a full blown flea infestation, you might need more than one treatment option. Try our Itch Flea Eradication Kit to Get Rid Of Fleas and stop from coming back for good! This is our proven method to eliminate all fleas from your pet and your home, with fast overnight delivery, you can get to work killing the fleas immediately.
Monthly flea treatment
Isn’t monthly treatment a hassle?
Not with Itch! Our subscriptions mean your flea treatment gets delivered FREE every month, exactly when you need it. It goes straight through your letterbox so no need for any vet trips like with a flea injection! Plus it’s tailored and personalised to your pet, meaning we’ll send the right dose for them to make sure they are fully protected against fleas!
AND when you subscribe to Itch, you get your first flea treatment FREE - big win!
Click HERE to tell us a few quick details about your pet and we’ll recommend everything for your pet's wellness plan!
Fighting off those fleas doesn’t need to be time consuming or expensive - just a quick monthly dose of Itch Flea Treatment for dogs or Itch Flea Treatment for cats that’s delivered to your door each month and your pets are ready to rumble!
Get rid of fleas and stop them coming back!
Flea infestations can be a nightmare, but with the right approach, you can take control and rid your pets and home of these bothersome pests. Remember that fleas can be persistent, so patience and regular treatment will be your best friends! By addressing both your pet and their environment, you can ensure a flea-free and comfortable living space for both your furry companion and your family.
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