Gabapentin
"I suffer from paresthesia in both arms, sciatica and anxiety/PTSD. I am currently taking 1500mg gabapentin/day. Results have been amazing. Numbness and tingling in arms reduced by 70%, sciatica pain gone and as a bonus, the sedating effects are incredibly effective for my anxiety. Also has improved the quality and quantity of my sleep. The biggest side effect which if gets worst I will discontinue gabapentin is the weight gain. I gained 15 pounds in 8 weeks. Slight blurry vision. Great medicine overall with some mitigating side effects."