quaternary ammonium spasmolytic drug

例句：

1. 1. The quaternary ammonium spasmolytic drug iseffective in treating skin conditions.
   这种四元铵类肌松药物对治疗皮肤疾病有效。
2. 2. The quaternary ammoniumspasmolytic drug was developedto treat muscle spasms.
   这种四元铵类肌松药物被开发出来用于治疗肌肉痉挛。
3. 3. The quaternary ammoniumspasmolytic drughas been shown to be safe andeffective for use in children.
   这种四元铵类肌松药物已被证明在儿童中使用是安全且有效的。