racephedrine hydrochloride

例句：

1. 1. The doctor prescribed a medicine to treat the patient's fever.
   医生开了一种药来治疗病人的发烧。
2. 2. The patient took the medication as directed and felt better soon after.
   病人按照指示服用了药物，很快感觉好转。
3. 3.Ephedrine hydrochloride is a common ingredient in many over-the-counter medications.
   盐酸麻黄碱是许多非处方药中常见的成分。