Kitten Heartworm Prevention: Is it Required?

Kitten Heartworm Prevention – Is It Required?

Heartworm lives in the lungs and hearts of kittens and spread by mosquitos. Diagnosis is sometimes difficult and your Vet may recommend a number of different tests to identify this disease.

Cat heartworm symptoms may include:

  • Coughing
  • Wheezing
  • Lethargy
  • Weight loss
  • Difficulty breathing
  • Loss of appetite

Kittens and cats are more resistant to heartworm than dogs, meaning the general consensus is that it’s less vital to protect against it in cats.

However, although the risk of heartworm in kittens may be very low, heartworm disease has been associated with sudden death in cats, so prevention is available and advised.

Kitten heartworm prevention comes in the form of monthly tablets, chewables and spot-ons.

We recommend that a heartworm detection test is carried out prior to treatment if your cat is over six months of age. Chat with your local PETstock VETteam for more info about this.


Most ‘all wormers’ do not prevent heartworm.

Our Recommended Products

Advocate Flea and Worm Treatment

  • Monthly spot-on treatment
  • Prevents heartworm, hookworm, roundworm and whipworm, and controls ear mites, mange and lice
  • Kills 98-100% of adult fleas within 12 hours of application


  • Broad spectrum intestinal wormer used in cats to treat roundworm, hookworm and tapeworms.
  • If given monthly, it also offers prevention against heartworm.


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