麦角碱

例句：

1. 1. This medicine contains ergotamine, which is a type of alkaloid.
   这种药物含有麦角碱，是一种生物碱。
2. 2. The drug was developed to treat migraines caused by ergotamine intolerance.
   该药物被开发出来治疗由麦角碱不耐受引起的偏头痛。
3. 3. Ergotamine is used to treat motion sickness and other conditions that cause nausea.
   麦角碱用于治疗晕动症和其他引起恶心的条件。