ibromyalgia
"I have taken this medicine several times for fibromyalgia and nerve pain.  While I have found it helps my nerve pain a bit, that is offset by major brain fog.  I feel paralyzed, unable to move, starting into space.   It's really bad and makes me feel depressed.  I already have brain fog and a poor memory with fibromyalgia and this even at low dosages is unacceptable as it makes those problems much worse."