Traditional Chinese medicine granules are generally sold in larger Chinese medicine shops, and there are not many kinds of Chinese medicine pieces. Only some kinds can be made into granules. I also suggest that you don't buy traditional Chinese medicine granules, because the price is expensive and the curative effect is not good, because the process of decocting traditional Chinese medicine is the process in which four flavors and five flavors enter the meridians and drugs interact to form a pattern of drug treatment, which is irreplaceable by granules. If you want to eat Chinese medicine, you'd better eat authentic Chinese medicine in a casserole.
Good health!