Why is my dog vomiting and not eating after surgery and Rimadyl?

Question

Can preop analgesic cause upper gi problems? Dog was also administered rimadyl post op. Vomiting, melena and complete loss of appetite presented three days later. Pet's info: Dog | English Mastiff | Female | unspayed | 160 lbs

Jennifer Summerfield, DVM CPDT-KA · Accepted Answer

Hi there. It's certainly possible for dogs to have a mild upset stomach for 12-24 hours after an anesthetic episode, but it would be unusual to see this three days later - especially with such severe symptoms. I would recommend having her rechecked by your veterinarian tomorrow morning, or going to the ER tonight if she seems overly distressed or lethargic. It's possible that she could have a stomach ulcer as a result of the Rimadyl (uncommon, but can happen occasionally even with appropriate dosing), or may have some other problem that may or may not be related to her surgery. It sounds like she needs an exam and likely some lab work +/- x-rays to help determine what's going on and see what kind of treatment is needed.

Why is my dog vomiting and not eating after surgery and Rimadyl?

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