Methocarbamol is a muscle relaxant that works by blocking nerve impulses sent to the brain. It is used to treat skeletal muscle spasms, and the muscle relaxant effects are largely attributed to the central depressant effects.
Methocarbamol has a high therapeutic index and common doses range between 3-6g daily, but can go as high as 24g for severe conditions such as tetanus. However, potential side effects include dizziness, disorientation, drowsiness, ataxia, nausea, fever and blurred vision. Due to the list of side effects associated with methocarbamol, it is considered a risk drug for the elderly.