Regulations for Good Clinical Practice Article 96

The investigator, or a person designated by the investigator, should explain the correct use of the investigational product(s) to each subject and should check, at intervals appropriate for the trial, that each subject is following the instructions properly.
中文原文 藥品優良臨床試驗作業準則第96條
試驗主持人或試驗主持人指定之人員,應向受試者解釋如何正確使用試驗藥品,並應於臨床試驗中每隔一段適當時間,檢查受試者是否遵守說明。

English translation for reference only; the Chinese text prevails. Not legal advice.