I was on prozac when it first came out about 30 years ago. I had an incredible desire to sleep sideways in my bed. Luckily I had a queen bed and was single at the time, so I mostly fit as I was unable to fight this urge.
I've forgotten what other side effects I had as it was so long ago.
Eventually, made me hypomanic, and ramped up my already heavy drinking and pot smoking, and then lithium was eventually added to the mix.
Not a good time in my life.