This has led to a handful of new treatments, such as artemisinin for treating malaria and the decongestant ephedrine, but there has been no goldrush of approved drugs.

• 这个做法获得了少数的新成果，例如用于治疗疟疾的青蒿素和减充血剂麻黄碱，但是获得批准的药物并未大量涌现。