migraine
"I had a terrible migraine and took 1/2 of a 5mg. It worked great. Yes, it knocked me out for about 12hrs but that was a small price to pay in order to get rid of the pain. It just works different for people. My boyfriend takes a 10mg for back spasms and he can barely tell he took one. He is a little under 200 lbs and I'm about 140lbs. I do not take this medication on a regular basis. Maybe twice a month if that."