But at least some steps can be taken, says Teng Che-ming, including "carrying out component analysis and keeping clinical test results about the differences between the original medicines and the substitutes and about the effects of each component."
但最起碼的工作，「包括分析成分、記錄臨床效果、替代品的成分差異、哪一些成分在發生作用，都應該進行」，鄧哲民說。