Gabapentin
"I'm diagnosed MDD & Bipolar, Type 2, and this is the first medication I've taken that has a significant positive impact on my anxiety without bad side effects. I usually worry, have circular negative thought patterns, and feel awkward and lost in my head most of the day. But I've gone from 300mg to 400mg and now to 600 mg of generic gabapentin, and it works wonderfully. It doesn't make me sleepy, unlike benzos. Like quite a few people, I've abused benzos in the past, but rarely get an urge to take too many gabapentin because of the limited recreational use. In conclusion: in my opinion, gabapentin is a wonder-drug for anxiety; especially for addicts and/or those with bipolar disorder."