There's a wide variety of medications used for Migraine, most of which are prescribed off-label. If amitriptyline has been prescribed for you, or if you and your doctor have been considering it, here's some information that should be helpful.
Type of medication:
Amitriptyline is a tricyclic antidepressant that has also been prescribed off-label as a Migraine and headache preventive for many years. It was, in fact, among the first medications recognized as a potential preventive.