migraine prevention
"I started this medication last year at 10 mg for my migraines. They were so severe I couldn't function and they were almost daily for me. So my doctor prescribed me nortriptyline. It really helped almost immediately. However, about 1 month in I got super groggy and lethargic during the day for no reason. I decided that I would just stay on the medication anyway. I am so glad I did because this medication helps so much with my migraines. I am now on 20 mg and I only get a migraine once a month or less. I would highly recommend for people with chronic migraines."