My cat was prescribed antibiotics for diarrhea and today was his second day of taking them. He’s required to take 0.5 mL of the antibiotic and another one after 12 hours (twice a day). Today, he lost his appetite (only ate a few treats) and threw up clear liquid twice and clear yellow liquid 3 times. He is also lethargic.

Updated On April 29th, 2024

Pet's info: Cat | Domestic Shorthair | Male | neutered | 11 lbs

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Answered By Dr. Strydom, DVM

Veterinarian

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Hello, thank you for using PetCoach. I'm sorry to hear that Leo is having this problem. Many antibiotics cause gastrointestinal issues in cats so you will need to call your vet and let them know what is going on. Most likely they will have you stop one or both of the antibiotics and prescribe something different. I would also suggest that you put him on a pre/probiotic while he is taking antibiotics and then continue for at least one week after the antibiotics have been stopped. Hope this helps. Best wishes.

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