Key takeaways
Metaxalone and methocarbamol (Robaxin) are both muscle relaxants used to treat short-term muscle pain and discomfort. They are not controlled substances and are available only with a prescription. While both medications are taken orally, methocarbamol is also available as an injection that is administered by a healthcare professional. Metaxalone is typically taken by mouth three to four times a day at a dose of 800 mg, while methocarbamol starts at 1,500 mg four times a day, with a maintenance dose of 4,000 mg total per day. Both medications are available as a lower-cost generic. Common side effects for both include dizziness and drowsiness. Both medications should be used cautiously with alcohol and other drowsiness-inducing substances.
