Updated On September 23rd, 2025
Pet's info: Cat | Maine Coon | Female | unspayed | 5 lbs
Hi, my cat is pregnant and has fleas. Can I use flea treatment on her right now?
5 Answers
Published on June 9th, 2017
To my knowledge, there is only one safe (supposedly) flea / tick treatment for pregnant / lactating cats. That is Frontline. I would still read the label carefully and see if the study they did revealed any weird birth defects in large numbers, but it is definitely supposed to be safe.
18Pet Parents found this answer helpful
Published on
Frontline is safe to use on pregnant cats. You will need to vacuum everywhere she has been, disposing of the bag outdoors immediately after. Wash all bedding as well. You should also use an area treatment to prevent reinfestation. Use a topical preventative monthly for at least three consecutive months, preferably year round.
11Pet Parents found this answer helpful
Published on June 25th, 2017
Absolutely not. This will undoubtedly cause a toxicity for your cat. Please only use cat flea preventative on your cat Angie to avoid making her very sick. It is good that you checked with us first. Look into cat products like Revolution, Advantage for cats or Comforirs for cats instead. Take care.
2Pet Parents found this answer helpful
Published on May 15th, 2017
Yes you can, strictly use the product recommended for cats. Other spot on may work better (like Stronghold), as fleas are getting resistant to frontline. Please do not hesitate to contact us again on the forum or by requesting a consultation if you have any more questions or to discuss it any further.
1Pet Parents found this answer helpful
Published on September 19th, 2018
It is not recommended to use Hartz® UltraGuard® brand flea and tick products on pregnant cats (or dogs). You can, however, use a product called Frontline spray on your pregnant cat. Unfortunately fleas only hop on the body of your pet when they want to feed, then they hop off again and stay in your pet's environment. So you need to treat all pets in the household as well as the environment (which contains the fleas, their eggs and larvae). Flea treatment: 1) Get some flea medication such as a Flea spray or a spot on from a pet shop or your veterinarian and apply monthly (in your case: Frontline spray) 2) get flea powder, put some in your vacuum cleaner bag and vacuum your house and furniture and also non-carpeted areas frequently to remove flea larvae and eggs which live off house dust., Dispose of the bag in the trash outside. Hot-wash all the pet's bedding, If you do this diligently for a few months you will get rid of the fleas.
2Pet Parents found this answer helpful
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