Nortriptyline
"Nortriptyline comes in 10, 25, and at LEAST 50mg. I think it also comes in larger doses. I have taken it for migraine prevention for several years then it stopped working as well. I currently take Venoflaxalin (or however you spell it) The problem I currently have is my GP prescribed Nortriptyline for my neuropathy I have gotten from a side effect of taking Levaquin. DON'T EVER TAKE!! I am taking 50mg as that seems to be the level that has helped. I titrated up to that level. EVERYTHING I read tell me I shouldn't be taking these 2meds together as it may cause a seratonin reaction that could be very serious. I have reduced the Venoflaxalin, but I am waking with DAILY migraines. I don't think my GP is informed."