Robaxin is a brand name for the drug Methocarbamol, which is used to treat muscle spasms and pain. There are a few different synonyms for this medication, including Methocarbamol Hydrochloride, Robaxacet, and Robax Platinum. Methocarbamol Hydrochloride is simply the generic name for the drug, and Robaxacet and Robax Platinum are brand names that include additional pain relief medication, such as acetaminophen. Other muscle relaxants that may be used in place of Robaxin include cyclobenzaprine and tizanidine. While these medications may have different names, they all work similarly to alleviate muscle spasms and pain. It is important to talk to a healthcare professional before starting any new medication or changing dosage.