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Is Pro-Sense dewormer safe for my cat? Is piperazine harmful?

Updated on September 23rd, 2025

Pet's info: Cat | American Shorthair | Female | spayed | 2 years old | 0 lbs

Is pro-sense deworming good or bad for cats? I've been told that an ingredient called piperazine is bad, is this true? I've gave this to my cat. I took her to the vet because she was only wanting soft food after I put worm drops in food but my mom seen her eat the hard food and use the litter box when I didnt think she was. But, she lost a little weight near her back end but, she still weighs 10 pounds and her resp is 25. She was acting a little weak so, I took her to vet. Could this be FELv?

1 Answer

Most Helpful Answer

Dr. Melanie, BVSc MS

Answered By Dr. Melanie, BVSc MS

Veterinarian

Published on July 11th, 2017

Piperazine is safe to give to cats, and you can give the Pro-Sense deworming treatment to Ella. It's not my favorite deworming treatment for cats, I like Panacur and Drontal, both of which you can get from your vet. Her respiratory rate is normal, but it is concerning she is acting a little weak. A heavy worm burden would cause her to lose some weight and be a little lethargic, but I wouldn't be too concerned yet she has FeLV. You would see other signs such as persistent diarrhea, anemia, lethargy, enlarged lymph nodes, and progressive weight loss among others. If you are concerned about Ella having FeLV, I would speak to your vet about running blood tests to see if she does have anemia, and possibly doing a bone marrow aspirate. I hope this helps!
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