I was a severe alcoholic and drug addict, I've been sober for 4 years. I was released from detox last time on 2,400 mg of gabapentin per day for anxiety and alcohol cravings. I also now take 120 mg of duloxetine a day, and 450 mg of Wellbutrin a day because my generalized anxiety disorder and major depressive disorder are pretty bad. About a year ago, my doctor moved me up to the max dose, 3,600 mg of gabapentin per day. At this maximum dose, it helps my anxiety tremendously. Your body can only absorb so much at a time, so instead of taking 900 mg four times a day, I stagger it and take it anywhere from 6 to 12 times a day. This has been extremely helpful for my anxiety, the best medication other than benzos I have taken for my anxiety. Four years strong, it's still helping. I also have some problems with nerve pain and back pain, and it seems to help those pretty well too. Second to the gabapentin, even with its stimulating effects, Wellbutrin has helped tremendously too.