Keppra here. My dose is limited...I can't tolerate more than my prescribed 3 pills daily [tried more-got way too sleepy]. Each of us has to balance the paiin relief and side effects that each med creates.

Use for PN is 'off label' as are most meds used.

Interesting web site I found today:
http://www.medicalnewstoday.com:80/m...=65677&nfid=nl

Hope this helps - j