Hi there - I have been taking this medication for a few months now, and the only side effect that I have a problem with is the tingly feeling in my feet every now and then, I find that if I drink lots of water it helps me though. The side effects only last a couple of weeks when you first start on the tablets or when you start increasing them - from my point of view it is well worth it, I feel so much better now, and am practically migraine free, going from 3 or 4 a week or 1 every couple of weeks or so!!!! Just stick with it is the only advise I can give, every one is different and we all react differently to things! :d :d :d