Gabapentin
"I have generalized anxiety disorder and Panic Disorder going on ten years now. I've been on Zoloft the entire time. I had a bad relapse of symptoms this year while on Zoloft. I bumped it up to 200 mg and began taking Gabapentin 300mg/day. I've been doing better, but I'm still working on getting my confidence up after this recent relapse.  Last week I started having anxiety symptoms for a couple of days, so I bumped the Gabapentin to 600mg/day. My anxiety is now better so far. I've noticed a side effect on this dose that I didn't get on the 300 mg... I've had spells of depression the past few days. I think those will pass as my body becomes used to the new dose. Depression is listed as a possible side effect. I just hope this medicine doesn't poop out on me."