benzylephedrine

例句：

1. 1.This medicine contains benzylephedrine, which can help relieve headaches.
   这种药物含有苯乙胺，可以帮助缓解头痛。
2. 2. The patient was given benzylephedrine to treat his allergies.
   病人被给予苯乙胺来治疗他的过敏症。
3. 3. Benzylephrine is a common ingredient in cold and flu remedies.
   苯乙胺是感冒和流感疗法中常见的成分。