I have had depression anxiety and am taking a medication for ADHD ( had a traumatic brain injury and at first it really did help). At least it motivated me to be more proactive in my life circumstances,depressed or not. Now I don't even want to leave the house. Lately, the depression has gotten terrible. I have tried antidepressants in the past but not this one. I couldn't stand the way they made me feel shaky, very light headed when standing like to the point I have had to hang on to the wall or door so as not to feel as if I would faint. I am under a lot of stress but have been under this stress for some time, yrs.I was just wondering how long does one stay on this medication and how long before it starts to work?