Soma 500mg (carisoprodol) is a muscle relaxant primarily used to treat muscle spasms and musculoskeletal pain. It works by affecting the central nervous system to block pain sensations between the nerves and the brain, leading to a reduction in muscle stiffness and promoting relaxation. The standard dosage of Soma 500mg is generally one tablet taken 3 times a day and at bedtime, depending on the severity of symptoms. The effects typically last for about 4-6 hours, and the medication is intended for short-term treatment, usually not exceeding 2 to 3 weeks to prevent dependency or side effects.