"i have been on gabapentin about 2 yrs. i take it with wellbutrin, since wellbutrin by itself, just causes too much anxiety for me. it is wonderful, helps the anxiety, and moods, relaxes and calms me, yet doesn&#039;t make me real tired. i take 300mg x 3, which is 900 mg a day, and it is perfect, if i need an extra one, i take it, since my script is for 4 a day, and i only take 3. good stuff. oh, also, it helps with some of my muscle pain as well. another thing i&#039;ve noticed, it decreases my appetite, and i lose weight, my weight stays stable."