Elavil (amitriptyline) has been passed off as a harmless drug for many years. It was originally marketed as an antidepressant. I am not a fan of this drug. It is heavily metabolized by the liver and uses most enzyme pathways. Blood levels should be done on people taking this drug, and doctors will often blow this off. This drug used to be prescribed for pain along with SSRIs, especially zoloft (sertraline)...NOW this is considered a toxic combination.

There is data on the internet regarding the tricyclics. If it works for you, that is probably a good thing, as there is so little that works for many folks, however, it is not an innocuous drug. I doubt that upping your dose by 10mg would bring on additional burning, but if it isn't helping and it gets worse if you raise the dose, I would do some research on it and discuss it with your doctor.

BTW, it is a very cheap drug. Insurance companies seldom protest to this drug being prescribed.

http://www.ncbi.nlm.nih.gov/pubmed/2833464