Dantrolene sodium salt hydrate is not approved for use in China, so the exact price is not clear. Dantrolene sodium salt hydrate is a potent drug for malignant hyperthermia for which there is generally no substitute, but it is not approved for import in China. It is not available in most places such as hospital pharmacies. The price is also unknown for the time being. Dantrolene Sodium Salt Hydrate is mainly to inhibit the release of calcium ions in the sarcoplasmic reticulum, which makes skeletal muscle relaxation. It needs to be injected as early as possible to avoid insufficient perfusion after circulatory failure. Its common side effects include fatigue, nausea, thrombophlebitis, etc. If serious side effects occur after use, you need to notify your doctor immediately for treatment. In addition, people who are allergic to the drug, as well as people who do not suffer from specific diseases are prohibited from using it. It is recommended to follow the doctor’s instructions before use and not to use the drug blindly.