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My cat vomited after loratadine. Should I continue the medication?

Updated on September 23rd, 2025

Pet's info: Cat | Mixed Breed | Male | unneutered | 6 months and 9 days old | 10 lbs

Hello. My cat, Sam is 6 months old and weighs 10 pounds. He had a visit to the vet yesterday who prescribed 5mg of loratadine every 12 hours. He has had 2 doses already, the last one last night at 11pm. But this morning he vomited his breakfast right in the middle of eating. Should I stop giving him the medication? Is there anything else I should do?

2 Answers

Most Helpful Answer

David Elbeze, DVM, MRCVS

Answered By David Elbeze, DVM, MRCVS

Veterinarian

Published on April 2nd, 2017

I'm not sure why your cat was prescribed loratadine, it's not likely that this medication is causing the vomiting but on the other hand Loratadine has no positive effects on cats whatsoever, it works great in humans but not in pets.
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Related Answers from Veterinarians

  • Answered By Ann Dion, DVM

    Veterinarian

    Hello. I am sorry that Sam isn't feeling well. I would just continue with the medication as directed this evening. If Sam is well and fine thorughout the day, and the vomiting stops, then I wouldn't worry too much. If the vomiting continues then bring him back to the vet earlier. If he is ok throughout the day, and he vomits again after his dose tonight, then discontinue it and call your vet in the morning. Good luck with Sam.

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    1Pet Parents found this answer helpful

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