Cyclobenzaprine
"I have used Flexeril for about 9 years now. It works great to ease my muscle pain and spasms. A lot of people have trouble with it making them sleepy but I have never had that trouble. I can take during the day with no drowsiness at all which is really nice. However it would be nice if it made me a little sleepy on the nights I am having trouble. It is a great medication and I am very grateful for it."