The main component of this drug is tizanidine hydrochloride, whose main pharmacological effect is to reduce the tonic spasticity of muscles by enhancing the presynaptic inhibition of motor neurons. Therefore, it is widely used in clinical practice as a muscle relaxant, similar to ethylprednisolone hydrochloride and cloxazone tablets. Clinically, there are many patients with spasticity in the limbs following spinal cord injury in the brain, cervical spine, or thoracic spine, and the use of this drug can effectively relieve the local symptoms.