Medicines have been made from natural sources like plants, herbs, roots, vines, and fungi since ancient times. In the Middle Ages, medicines were made from herbs, spices, and resins. As science advanced, chemists were able to extract active ingredients from natural sources to create more potent medicines. For example, aspirin (acetylsalicylic acid) comes from the willow tree, which has been used in traditional herbal remedies.
西藥就是西方人從植物，礦物，菌類裏提煉出有效成分做成的。
中藥就是還停留在比較原始的未提煉的原生狀態。
所以，我認為，西藥應該更安全更有效（當然還是具有副作用）。中藥裏雜質會比較多。
