Trazodone
"I was given trazodone by mistake in the hospital after hysterectomy. I normally take clonazepam for sleep and asked for that but was given trazodone instead. One of the worst nights of my life. I was anxious and unable to sleep and whenever I closed my eyes I had visions of gory dismembered body parts that would not go away (like a vision of hell or something, crazy). It went on all night long, never experienced that before. I only took it that one night in the hospital (didn't find out til later it was the wrong drug). Evil, evil drug. At least for me."