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My 8-month FPV+ cat is vomiting and not defecating. Obstruction?

Updated On September 23rd, 2025

Pet's info: Cat | Domestic Shorthair | Male | unneutered | 4 lbs

Blood smear tested FPV+ for my 8 months cat. He has been vomitting 4 days straight of yellow liquid, doesnt want to eat but drinks a little. Vomitted even after giving anti emetics medication. I give him a spoonful of hills prescription diet a/d chicken restorative care every 3 hrs but he vomits a little. My concern is that he doesnt defecate. Is this really caused by FPV or something like intestinal obstruction? No diarrhea observed so far.

1 Answer

Most Helpful Answer

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Answered By Laura Johnson VMD

Veterinarian

Published on October 4th, 2017

HI, thanks for using Petco Pet Education Center, formerly Petcoach! I am so sorry that Mochi is so sick! Panleukopenis virus can cause severe vomiting and diarrhea. Mochi may not be defecating because he hasn't eaten enough to produce stool. With that being said FPV can mimic intestinal obstructions. Mochi is very sick and I think what he needs is to be hospitalized and be put on IV fluids and IV medications. He is likely very dehydrated. There are many anti-emetics that can be given together IV. The Vet then can also take an X-ray of his belly or have an ultrasound performed to be sure there isn't an intestinal obstruction or even an intussusception present that would require surgery. Also be sure a fecal parasite test has been done, a lot of cats with FPV also have worms which can make them sicker. Also be sure general blood work has been performed. I hope this helps and I wish Mochi the best!

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