I have been using it for about 5 weeks now and am experiencing some of the common side effects, dizziness, nausea, etc. I don't think it's causing depression but I am not sure if I would know exactly what to look for because I have never been depressed. I just can't seem to get enough sleep. 7 hrs at night and I fall asleep about 2pm every day. I'm thinking of stopping the pill for a week just to see if it helps.