Petco Text Logo
Petco Pet Logo

My dog died after Rimadyl. Was it a medication side effect?

Updated On September 23rd, 2025

Pet's info: Dog | Mixed Breed | Male | unneutered | 6 months and 5 days old | 10.4 lbs

My 6 month old chihuahua mix was prescribed by a vet 25 my tablets to take half every 12 hours on a Wednesday. he weighed 10.4 pound he had vomiting and diarrhea after the second dose vet told me to keep him on the rimadyl I continued the rimadly until Saturday morning I stopped all meds because he had been sick since started on the medication and he only had a minor leg injury no infections or broken bones. He died Monday morning . Was it the rimadyl ?

1 Answer

Most Helpful Answer

Image profile

Answered By Jeffrey Milner

Veterinarian

Published on October 18th, 2017

I'm very sorry to hear about Gizmo. Half of a 25mg Rimadyl tablet is a relatively normal dose for a 10.4lb animal, maybe a little high, but not enough to usually cause a significant problem in the short term. Some of the side effects that can occur with Rimadyl do include vomiting and dark tarry stool as a result of ulceration of the stomach lining. It is not a very common side effect but it is something that we can see. Without a full autopsy, it is impossible to know for sure why Gizmo passed. However, it certainly is curious that he was having those clinical signs immediately after giving the medication.

Vote icon

1Pet Parents found this answer helpful

image
Have A Vet Question?

Book an appointment with the pros – our expert vets are here to help.

Sponsored