I took it for over a year and didn't have any problems. The only side effects I dealt with was some lightheadedness/dizziness for 4-5 days when I first started taking it. Then when I increased the dose dealt with very little of the aforementioned side effect for 2-3 days. It made me really tired and I got some good sleep for 2 nights out of it.
A side effect for a lot of people is weight gain. I didn't gain an ounce even but I'm very weird anyway. When I can't be active I lose weight and am now severely underweight!
It took away the electrical zaps and night sweats. It temporarily helped the numbness in my legs but in the end only made it worse. Not sure why other than maybe it's the way my body processes meds. It's the reason I don't take it anymore. I had gotten up to 150mg a day. The numbness in my legs was way worse than it was when I started it and that is the reason I took it to begin with.
Some people say it really helps with any burning as well. Hope it helps you, keep us updated on how it goes.
Hugs,
Karen