Sirdalud is a prescription medication containing 4mg of Tizanidine, manufactured by Novartis. Each pack contains 30 tablets. It is a muscle relaxant used to treat muscle spasms, stiffness, and tightness caused by conditions such as multiple sclerosis or spinal cord injury. Tizanidine works by blocking nerve impulses (pain sensations) that are sent to the brain. The medication helps reduce muscle spasticity by temporarily relaxing muscle tone. The recommended dosage should be determined by a healthcare provider based on individual patient needs. Common side effects may include drowsiness, dizziness, weakness, and dry mouth. This medication requires a prescription and should be taken exactly as prescribed by your doctor.