请将以下 DiseasesDB 药物介绍翻译成中文，并使表达更加正式和专业。  
Dantrium (dantrolene sodium)  
Dantrium, a muscle relaxant, is a potent anti-dysrhythmic agent indicated for treatment and prevention of malignant hyperthermia. It has been used off-label to treat other conditions, including neuroleptic malignant syndrome and severe muscle spasticity. Due to its narrow therapeutic index, Dantrium requires careful monitoring of the patient. It is administered by intravenous injection. The drug works by interrupting the release of calcium from the sarcoplasmic reticulum, thereby preventing muscle contraction. It is on the World Health Organization's List of Essential Medicines, which lists the most important and effective medications needed in a basic health system.
user
Dantrium（丹曲洛钠）

Dantrium 是一种肌肉松弛剂，具有显著的抗心律失常作用，适用于恶性高热的治疗和预防。该药物还被超说明书用于治疗其他疾病，如神经安定药恶性综合征和严重肌肉痉挛。鉴于其狭窄的治疗指数，使用 Dantrium 时需对患者进行严密监控。该药通过静脉注射给药。其作用机制是通过阻断肌浆网中钙的释放，从而阻止肌肉收缩。Dantrium 列入了世界卫生组织的基本药物清单，是基本医疗卫生系统中不可或缺的重要和有效药物。
assistant