Pregabalin
"I was prescribed Lyrica about 3 years ago for post surgical neuropathy in my legs. While it does help with the nerve pain I accidentally stumbled onto another effect  of the drug, it absolutely wipes out my anxiety and depression. I've been diagnosed with generalized anxiety disorder, clinical depression, and PTSD. Nothing I've tried in my experience has come close to helping my mental issues as much as Lyrica. There are some side effects in the beginning such as a little bit of a wobbly/buzzed feeling bit it subsides after a few days. The only two qualms I have with the drug are the price (about 12 bucks a pill without insurance) and I build a tolerance to it very quickly."