I think this is a good medicine. I haven't always felt great on it but it got me out of bed and able to make my life better! I felt AWFUL for the first 3 weeks; dry mouth, exhausted, depressed; but after that I could get out of bed without being afraid and put my life together. Dry mouth was a big thing for me but chewing gum was the best way to deal with that.
I would recommend persevering for 6 weeks and if you're still not satisfied move on to the next one.