In order to use the medicine in a safe and effective way, doctors have to know such things like what ingredients are needed, the contraindication (effect), the dosage, the way to take it, and the way to make up a prescription. Sometimes doctors need to select different ingredients in light of the patients' different situation. As for contraindication, doctors have to consider the effects of ingredients, pregnancies, food, and diseases.
Regarding the dosage, doctors will have to consider how much volume patients should take per day and what the appropriate proportion for every ingredient should be in order to make up a compound medicine.
Future Trend of Chinese Medicine
In the future, China will carry on the current way of producing herbal medicine while giving more focus on cultivating better varieties of plants by adopting such methods like isotope and biological engineering. Meanwhile, China will expand the production of those greatly needed herbs, such as licorice root, the roots of large-flowered skullcaps and Chinese thorowax, and those imported from abroad, which amounts to 20 kinds. At the same time, China will do more researches to prevent the degeneration of seeds and cultivate more new resources.