No ban on the fakes And the names can have a powerful psychological effect. "Four spirits soup," for instance, includes an ingredient called white tiger, but of course it isn't really white tiger. "Dragon bone" is not only made from the fossils of dinosaurs. But psychologically "dragon bone" sounds more effective than "pig bone" or "dog bone."
藥名只是代號的另一個原因，和傳統藥材含有部分精神療法相關，比如四神湯中包括一味稱為白虎的藥材，當然不是真白老虎；「龍骨」當然也不只有恐龍的化石，包括有許多哺乳類動物的化石，但「龍骨」聽起來絕對比豬骨、狗骨有「心理療效」多了。