Tizanidine
"This is a great medicine for muscle spasm and neck/head pain. I tried flexoril but that made my knees feel wobbly but did not make me feel sleepy like the tizanadine, which I need because I have serious sleep disturbances. The tizanadine also is good for overall aches and pain for me. I take 2 mg at dinner then 6 mg at bedtime. If I wake up in the night I take another 4 mg. This is a high dosage but my doctor allows me 12 mg daily. I am thankful for this medication."