"have classic migraine headaches which last sometimes 4-5 days long. have been on norco 10/325 for about 5 years now, and this medicine really works well.  i don&#039;t want to be on anything stronger (percocet, dilaudid, etc.), have tried norco with flexeril and that seems to be effective.  i can&#039;t see myself off these, the pain is just too intense, and the over the counter medicines don&#039;t work to treat severe migraine pain.."