nausea/vomiting
"This is the only medication I have ever been given in my ENTIRE life that has made me literally want to rip out my IV and run out of the ER. 
I was given this in the ER to curb the side effects of my lumbar puncture. I have anxiety and RLS so in the beginning I thought I was just experiencing a minor panic attack. I felt so restless that I had to go to the bathroom just to do something with myself. 
When I got back to the bed I immediately told my gf that I wanted to leave. Was pushing the call light. And damn near left screaming. I flipped my shot on the doctor and he said this was a common side effect. I told him I feel like I'm going to have a panic attack and he gave me Benadryl and some kind of benzo. 

Absolutely horrid."