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He vomits approximately 3 or 4 times per day. His stool is normal. He doesn't throw up all of his food. He'll eat 2 cups at a sitting and throw up less than 1/4 cup at most. He vomits several hours after eating.
He takes one 100mg Rimadyl per day for hip pain and has been on it for 3 years. He is also receiving Mometamax twice a day for an ear infection and Gentamicin Sulfate twice a day for an eye infection (both began 5 days ago.
He had an isolated seizure two weeks ago and I mentioned the vomiting to the vet at that time, but she thought it was unrelated.
Additional symptoms include general lethargy and a runny nose.
What do you mean by "Megaesophagus would typically cause ongoing regurgitation/vomiting rather than on/off vomiting?"
Does vomiting 4 or 5 times every day qualify as ongoing? Or does ongoing mean vomiting every time he eats or more constantly throughout the day?
The vomiting started sporadically about 4 weeks ago. And within the last week or so it has increased to 4 or 5 times daily - every day.
I just fed him 2 cups of food and made a note of the ingestion time to get an accurate time to his unfortunately inevitable vomiting.
Thanks for your prompt and detailed responses. If you don't mind, I'm going to monitor him for a bit and (now that I'm paying science experiment level attention to times and amounts) and see if I notice anything additional that I missed before.