Muscle relaxants are pharmaceutical agents designed to alleviate muscle spasms and reduce tension in skeletal muscles. They are commonly used to treat conditions such as back pain, neck pain, and muscle injuries. Muscle relaxants can be classified into two main categories: centrally acting agents, which affect the brain and spinal cord, and peripherally acting agents, which act directly on muscle tissue. Their effectiveness in promoting relaxation and improving mobility makes them valuable in both acute and chronic pain management.