"i was given this med for my tn pain, after i went to my dentist and he found nothing wrong with my teeth. that same day, my dentist called my gp and my gp got me in right away. i was sent for facial x-rays to check for sinus infection, nothing, so my gp made several calls and got me into a neurologist, in the mean time he asked her what he could give me for pain since at this point i had lost 10 lbs and was missing work. they put me on gabapentin and amitriptyline. it took a couple of days, but wow, when it started to work it was amazing for pain relief. they have upped me to 600mg 3 x a day and now at about three everyday i am a little high. but, the best side effect ever has to be that my anxiety, period cramp pain and insomnia are gone!"