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Updated on September 23rd, 2025
Pet's info: Cat | Maine Coon | Male | neutered | 5 months and 9 days old | 5 lbs
We treated our 2 cats with a generic Advantage 2 a week ago. We just received our Revolution in the mail. How soon can we apply the Revolution for their flea infestation? They're 5lbs, and 6lbs. 5 mos old.
3 Answers

Answered By Dr. Melanie, BVSc MS
Veterinarian
Published on October 10th, 2017
Answered By Dr. Melanie, BVSc MS
Veterinarian
Published on January 15th, 2017
Revolution will start working 12 hours after application, but it will take 24 hours before all the fleas are killed. As long as your cats have flea protection as well, the fleas will not affect them. You can also give your cats and the stray cat Capstar. It's a one time pill that starts killing fleas in 30 minutes, and it's safe to use now. If he doesn't have a home, you may have a new member of your family :-)
1Pet Parents found this answer helpful
Answered By Dr. Melanie, BVSc MS
Veterinarian
Published on June 24th, 2018
It's safe to give Chester Capstar. This is a one time pill that starts killing fleas in 30 minutes. Wait until it's been at least two weeks since he last was treated with Revolution, and then it's safe to give him a repeat application of it. Best of luck, I hope this helps!
1Pet Parents found this answer helpful