The application of drugs must be compatible with a person’s diet and sleep in order to better play the role of drugs. Some drugs must be taken before meals to be effective, such as diabetes patients who take oral bactrim, etc., it is best to use 5 minutes before meals for better efficacy. Stomach medicines, such as omeprazole, triptorazole, metsylline, etc., are good to take before meals. Deworming drugs, such as Ascaris lumbricoides, betel nut, etc., which are taken before meals, can make the drug enter the intestine as soon as possible to play its efficient concentration, acting directly on the intestinal body and exerting its medicinal effect from within. Some salt laxatives, such as magnesium sulfate, the drug is good to eat on an empty stomach, into the intestinal tract effect is good. Some drugs such as magnesium sulfate, digitalis, aspirin, anti-inflammatory pain, potassium iodide, etc. good to eat after meals. These drugs are stimulating to the gastric mucosa. If the drug is used on an empty stomach, the gastric mucosa will be stimulated and discomfort such as nausea and vomiting will occur. Chinese herbal medicine is generally good to eat in the morning on an empty stomach and in the evening after meals, which is also a good way to take Chinese medicine in general.