"i was prescribed this medication for chronic severe neck pain.  i was taking 50mg per day.  while it worked to eliminate pain, i experienced constant nausea, vomiting, light headedness, and many symptoms of serotonin syndrome since i also take celexa each day.  seroonin syndrome is serious and dangerous and can increase the likelihood of seizures.  also, i&#039;m taking this medication at night and it keeps me awake all night instead of allowing a good night&#039;s rest.  "