Gabapentin
"Prescribed for intense itching of the forearms caused by nerve damage at the C5-6 level. 300mg 3x per day for 3 months. Took approximately two weeks to reach maximum effectiveness and completely blocks the itch that nothing else could stop. Only drawback is possibly some un-before-known mild brain-fog/mental fatigue: difficulty expressing a thought because the appropriate (common) word escapes me, difficulty with information recall (short term memory), "spacing out". The initial sleepiness experienced when taking a dose passed within a few weeks. Other than appearing as, and feeling like, an occasional "airhead", this medication has been a tremendous asset."