I've never taken Trazodone before, but it made my grandma manic while she was in IP. She was talking a mile a minute, hallucinating, pacing, not sleeping, etc.. She was also delusional as hell. She had dementia on top of that, but the IP doctors were confident she was experiencing a manic episode, so they took her off it immediately. She eventually stopped the pacing, got more sleep, and calmed down with the talking after starting Geodon and Depakote, and being off the Trazodone for a week.

I'm not entirely surprised my grandma had this reaction to Trazodone, as Trazodone is an AD and ADs are just plain bad for some people.

My grandma is no longer alive, though. She became a vegetable from the dementia. Could no longer eat, drink, move, etc.. But that's irrelevant.