Do Fleas Jump Off of Pets After Treatment?

When a pet is given the first dose of Advantage or Revolution, do the fleas jump off the pet and into the environment? Or do the fleas die from the chemicals? I am asking this because I'm wondering if I should put the cat outside for a while? Is it okay for it to sleep on my bed right after giving the dose? I don't want the fleas to jump off of my cat and onto my sheets!


By Cyinda from the WA

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May 26, 20100 found this helpful

I have never observed fleas jumping off my dog from a treatment of Advantix. However, they do jump off the dog onto beds, couches, rugs, etc. before the treatment. That's often how I found out the dog had fleas. I guess it's that time of year again :(

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May 27, 20100 found this helpful

No, the fleas don't jump off after the treatment.

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December 5, 20162 found this helpful

Well yes they do! I luckily put a towel down after on my bed and the cat got up after about 4 hours. Thankfully I decided to turn the light on and look at the towel and there were at least 40 fleas crawling all Over most definitely alive!


I don't know if they would have died but it was hours after treatment and I am still finding them. The cat has never been on my bed before or even in my room. It's my dads cat. I just wanted to keep an eye as have heard it can make them sick

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November 4, 20170 found this helpful

To the person claiming no, they dont jump off. You are 100% absolutely incorrect and you are not knowledgable about fleas. Please stop claiming to be!

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May 31, 20103 found this helpful

No, they dont jump off. They may fall off when they die, but I never saw any. I did notice that any fleas living in my carpet jumped onto the cat and died also. Any hatching fleas died the dame way. I know I had fleas in my carpet when I treated the cat and I havent seen any for 3 years now (indoor cats). I never had to treat again.

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August 28, 20172 found this helpful

They do. I just treated with Bravecto and they started jumping off for dear life.

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July 1, 20171 found this helpful

When I applied revelution the fleas DID start jumping off. I combed her an hour after application and the fleas moved slower and I saw a lot more crawling around in her fur then I did on her skin. They were a lot easier to get off of her. I just combed her a 2nd time and It's been 10 hrs since her application and there are still fleas moving on her.


I hope the rest die because I know she can't have another application for 30 days. I also hope the live fleas that have jumped off or that I've combed off die because I combed her in my garage.

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July 8, 20171 found this helpful

I just treated my cat with revolution after finding a tick on my son. I didn't even know we had fleas and all of a sudden I'm getting bitten. I think they are leaving the cat from the treatment as I wasn't getting bitten before the treatment.

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July 10, 20170 found this helpful

I've noticed the fleas moving closer to there pp area obviously because the medicine is applied to the back of there necks they do jump off when you try to grab them unless they run away fast enough before you can grab them above the hair over all they try to stay on the dogs or cats body also I have noticed a 1 or 2 on my leggings while i was washing my face hoping they will die still even tho they got off my dogs the directions for the meds say you have to wait a month to reapply so I figure the solution will continue to work n kill the fleas and eggs fingers crossed feel so bad for the little guys I'll keep yall posted

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August 12, 20171 found this helpful

I just treated my cat with Advantage II and it did sleep on my bed. (as usual) Well, for the next 2 nights, I kept waking up with bites all over me. Didn't see anything biting me.


I am covered with bites from head to toe. I looked good at the bed and there are fleas under the sheets, on the mattress, and on the blankets. They certainly do jump off the cat after treatment!!! I am proof!!

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October 10, 20170 found this helpful

Hi there. How have u gotten rid of them since?

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November 2, 20170 found this helpful

They aren't jumping off as much as they are falling off and dying....

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February 27, 20180 found this helpful

First of all,if you cat or dog has fleas, you need to first...buy Capstar, it's a pill that kills fleas for 24 hours and they will all be dead. Then apply the Revolution or the Advantage. You have to really treat the environment also.. And please.....get the bug protectors for your bed. The fleas are horrible creatures. I hate that they co-habit this environment and torment our furry friends and us too. My vet told me that the fleas were biting me because i was on blood thinners and they didn't have to inject an anticoagulant..


But please..get some capstar and it can be given at the same time you treat your animal. I am using Revolution. I used them all, but my vet loves revolution, he said that the fleas were finding resistance to Advantage and Frontline. The fleas are so hard to get rid of. I finally bought a Roomba to continually vacuum. Its a hard battle, but Capstar, spot on and diligent environmental treatment--call an exterminator.. F

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November 4, 20170 found this helpful

I sprayed with another formula of flea riddant and they have been jumping off like crazy. Literally jumping ship!

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February 18, 20180 found this helpful

They die.

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