Frontline and capstar but still has fleas.

Dr. Marie replied:

This is a frustrating problem! Both Frontline and Advantage are good products so they should work to treat a flea problem.

Sometimes if there is a severe flea infestation in the house, it can take several months of treatment before we stop seeing live fleas. You can also talk to your vet about using a product called Capstar along with either the Frontline or Advantage to add extra "oomph" to the flea killing process.

Here are some other tips that may help:

-Be sure that you are using the Frontline/Advantage once a month. Any longer and fleas can still survive.
-You need to treat for at least 3 months in a row.
-You need to make sure that ALL animals in your house are being treated.
-Be sure that you don't bathe your cat within 24-48 hours of putting on the product.
-Don't use Frontline or Advantage that you bought online. There have been cases where online pharmacies were selling expired product or even a totally different product.

In my clinic, if an animal is on Advantage and the owner is following all of the directions and is treating all animals in the house, Bayer, the company that makes Advantage will investigate the problem and help you solve it. So, you may want to ask your vet if they can contact Bayer for you.

I hope this helps!
Dr. Marie.

---This question was asked in our Ask A Vet For Free section.---

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