Victor is a 12.75 yo neutered Brit. In June of this year he started having what looked like an anxiety attacks. The first episode lasted 4 hours. A trip to the vet seemed to indicate it was a response to pain [deep pocket behind the last molar which was removed]. Post surgery he continued to have sudden onset episodes of heavy panting, significant shaking, apparent hallucinations, signs of fear, and pacing. Trazadone was administered over the next 4 days and the episodes subsided.
He has had occasional episodes since then, mostly sudden onset and generally at evening time.
Trazadone took care of the issue initially but with diminishing effectiveness.
Last Saturday, an episode began and we have been dealing with it ever since. Trazadone has been increased from 50mg/day to 200mg/day. Trazadone has no longer has any apparent effect. He sleeps during the day but around 4pm something triggers an episode which continues for most of the night.
So the question is... my vet does not think he is having seizures. I am looking for medication that will either control/prevent these episodes or address the issue at the time an episode occurs. Does anyone have any insight, advice, or experience with this?