Updated On September 23rd, 2025
Pet's info: Cat | American Shorthair | Male | neutered | 1 year old | 12 lbs
I gave my cat piperzine for worms a week ago and today i gave him nitenpyram for fleas today now hes panting heavy and scratching what do i do?
1 Answer
Published on April 22nd, 2017
Panting is usually a sign of serious respiratory distress in cats and I would not expect this as a side effect of nitenpyram or piperazine. I would recommend taking Pudge to an emergency veterinarian if you continue to see him panting. If he has fleas it's not uncommon for them to cause discomfort or increased itchiness as they start to die so I wouldn't be concerned about scratching. Nitenpyram only lasts about 24 hours so you should follow up with a longer term flea preventative.
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