Taking medication after a meal is generally best about half an hour after a meal. Some clinical drugs, due to the relatively large stimulation of the gastrointestinal tract, are generally recommended to be taken after meals. The post-meal time is generally about half an hour after the meal, when the food in the stomach is in the state of food depression, and the stomach acid is consumed due to digestion of food, and the pH value in the stomach is low. For some drugs that have requirements for pH and are more stimulating to the stomach and intestines can be considered to be taken orally after meals. Some non-steroidal anti-inflammatory drugs commonly used in clinical practice, such as aspirin and lexon, are recommended to be taken after meals, which can reduce the mucosal irritation of the gastrointestinal tract and also promote absorption in the stomach. However, it must be noted that not all drugs are required to be taken after meals, some drugs may need to be taken before or during meals to play a better role, so be sure to follow medical advice or check the instructions to regulate the use of drugs.