n.天仙子（东莨菪）碱；东莨菪碱（一种植物碱，由莨菪萃取而得，供药用，由镇静神经之效）

Hyoscine is commonly used as an antispasmodic to treat gastrointestinal disorders, such as irritable bowel syndrome.
士的宁常被用于治疗胃肠道疾病，如肠易激综合征。
The pharmaceutical preparation atropine sulfate is derived from hyoscine.
硫酸阿托品这种药剂是由士的宁衍生而来的。
Doctors prescribe hyoscine for motion sickness during long-distance travel.
医生会给长途旅行中出现晕动症的病人开士的宁。
Hyoscine is known for its ability to alleviate muscle spasms and cramps.
士的宁以其能缓解肌肉痉挛和抽搐而知名。
In veterinary medicine, hyoscine is used to calm anxious or hyperactive horses.
在兽医学中，士的宁用于安抚焦虑或过度活跃的马匹。
Hyoscine is found in the nightshade plant family, particularly in the plant Hyoscyamus niger.
士的宁存在于茄科植物中，特别是在黑烟草（Hyoscyamus niger）这种植物里。
It can be administered orally or rectally, depending on the severity of the condition.
根据病情严重程度，士的宁可以口服或直肠给药。
Hyoscine is contraindicated during pregnancy due to potential risks to the developing fetus.
由于可能对胎儿造成风险，妊娠期间应避免使用士的宁。
The drug has a relatively short half-life, necessitating frequent doses.
士的宁的半衰期较短，需要频繁服药。
Hyoscine-based remedies are often combined with other medications for a synergistic effect.
基于士的宁的疗法常常与其他药物结合使用以增强药效。