Final answer:
Metaxalone is used to treat musculoskeletal pain by providing relief for acute, painful conditions, although its exact mechanism of action is not fully known.
Step-by-step explanation:
The indication for Metaxalone is for the treatment of musculoskeletal conditions, particularly for the relief of discomfort associated with acute, painful musculoskeletal conditions.
The mechanism of action (MOA) of Metaxalone is not completely understood, but it is believed to work primarily by sedation and central nervous system (CNS) depression, possibly due to general CNS depression. Metaxalone does not directly relax tense skeletal muscles in humans.