1, before meals. Usually take the medicine 30 ~ 60 minutes before meals. If the disease is second, you should take the medicine before meals, so that the medicinal properties of the medicine can be easily released, such as liver and kidney deficiency or diseases below the waist. It is also advisable to take medicine before meals to treat intestinal diseases. Because, on an empty stomach, the liquid medicine can directly contact with the mucosa of the digestive tract, and quickly enter the intestine through the stomach, so as to be absorbed more and play a role, so as not to be diluted by the food in the stomach and affect the drug effect.

2. Take it after meals. Take the medicine after meals 15 ~ 30 minutes. The sick place is in bed, so you should take medicine after meals. If you treat heart, lung, chest, diaphragm, upper abdominal cavity and other diseases, you should take the medicine after meals, which can increase the efficacy of the medicine. Drugs that stimulate the gastrointestinal tract can reduce the damage to the gastrointestinal mucosa after meals.

3, on an empty stomach. Also called Pingdan, it means taking medicine before eating in the morning. Soup with nourishing effect should be drunk on an empty stomach in the morning to facilitate full absorption. Drugs used to repel insects or treat vascular diseases of limbs should also be taken on an empty stomach, so that the drugs can quickly enter the intestine and maintain a high concentration, so as to quickly exert their efficacy. The same is true of the decoction with purgative effect, thus enhancing the curative effect.

4. Before going to bed. Generally, it is taken 0/5 ~ 30 minutes before going to bed. At this time, you can take drugs that tonify the heart and spleen, soothe the nerves and help sleep. In addition, some western medicines, such as hypnotics, anthelmintics and antiallergic drugs, are usually taken half an hour before going to bed at night.

From: seeking medical advice