Baclofen
muscle spasm
"I began taking Baclofen 14 years ago.  I started with 10 mg three times a day.  After six months, my doctor increased it to 20 mg, and I eventually went to 40 mg twice times a day.  Through all of this, I got only marginal relief.  Last year, I had the intrathecal pump installed.  So far, I still have had only marginal relief.  My left hamstrings are very painful throughout the day.  Massage is helpful, but very temporary.  I'd love to find something that really relaxes my spasms."