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Can I combine Advantage II and Advantage spray for cat fleas/ticks?

Updated On September 23rd, 2025

Pet's info: Cat | Mixed Breed | Female | spayed | 3 years and 9 months old

Hi. Is it safe to use advantage II and advantage treatment spray for cats together? The first only trats fleas but not ticks, the spray is for ticks and fleas. I recently found out she has ticks. My cat is 3 years and she's in and out of the house.

1 Answer

Most Helpful Answer

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Answered By Jenny, DVM

Veterinarian

Published on June 27th, 2017

The products contain different ingredients but I would be cautious in using them at the same time. Cats can be sensitive to the ingredients in medications especially the main ingredients in the spray. Waiting a week in between should be enough time to not cause any harm.

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