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Why is my senior dog vomiting water after drinking, brain tumor?

Updated on September 23rd, 2025

Pet's info: Dog | Mixed Breed Medium (23 - 60lb) | Male | neutered | 12 years and 6 months old

Hi there my dog is 12 years old . its mostly when he drinks water seems like he wants to vomit sometimes nothing comes out other times he vomits a bit of water out . I have noticed it is happening quiet a lot he is on Sedabarb tablets as he was diagnosed with a brain tumor .

1 Answer

Most Helpful Answer

Jenna Beyer, DVM, MBA, cVMA

Answered By Jenna Beyer, DVM, MBA, cVMA

Veterinarian, Certified Veterinary Acupuncturist

Published on November 16th, 2018

I would recommend that you have Buddy examined by a vet. The vomiting could be a side effect of the medication, related to his brain tumor, or could indicate internal issues such as kidney or liver disease. The vet will do a thorough examination and may recommend blood work and urinalysis to evaluate major organ function. Depending on what they suspect is going on, they may prescribe additional medications or treatments.
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