One problem with carisoprodol (Soma) is that it potentiates opioids, as do benzos. Mixing
oxycodone with both Soma
and Xanax will give any prescribing physician the willies, as this combination, especially in the presence of alcohol, would cause many a patient to 'wake up dead.'
Dantrolene is a good muscle relaxant, and the only one that does not effect the central nervous system -- it works directly on preventing muscle contraction. This may be a safer medication for you.