Ondansetron
"I'm using this for my morning sickness. This takes the edge off but doesn't completely stop me from feeling nauseous. I have a side effect that I thought you should know about as I noticed that involuntary upper eye lid spasms was in unconfirmed and I can tell you that this medication does and can cause it. I've never experienced this annoying side effect before but my eye has had severe spasms for the last 24 hours!"