It is a very important way for understanding the TCM prescription through the studying of TCM from different level based on the chemomics approach. External intervention and internal response system of living organism were linked together by combination of chemomics with system biology to acchive a novel system to system investigation method for TCM.The investigations of TCM system may be conducted on three-level chemomes step by step, which was from complex to simple. According to the pharmacology, metabol...