It may never work, it is given
for nerve ending
pain in my case I took it
for 12months, also tried pregabaline, to no avail, I only speak personally of the drug, my partner took it for years for perlifiral neauropathy thought to have been brought on by alcohol abuse, he has stopped taking it 6 months ago pain is no better or worse. My pain for Erythromelalgia was not helped. I hope you are more successfull with it. It is usually increased gradually, and stopped gradually. Good luck Anita.