Tizanidine is a medication primarily used to treat muscle spasms and spasticity, often associated with conditions like multiple sclerosis or spinal cord injuries. It works by relaxing the muscles and reducing excessive nerve activity, helping to alleviate discomfort and improve mobility. This drug is typically taken orally and can be prescribed in various forms, including tablets and capsules. Common side effects may include drowsiness, dry mouth, and dizziness. It is important for patients to follow their healthcare provider's instructions and discuss any potential interactions with other medications they may be taking.