Myoset Tablet contains Eperisone 150 mg, a muscle relaxant used to relieve muscle stiffness and pain. The exact dose and treatment schedule should be determined by a doctor, as it depends on the severity of your backache, age, and overall health. While eperisone is generally taken once or twice daily, unsupervised use can cause side effects such as dizziness, low blood pressure, or allergic reactions. A healthcare professional can provide safe dosing instructions, duration, and precautions tailored to your condition.