There is no correct time to take drugs before and after meals, different drugs have different time to take, the specific time to pay attention to the doctor’s instructions to take, it is generally recommended to take the drug 30 minutes before meals or 15 to 30 minutes after meals. For example, to increase gastric power and protect the gastric mucosa of the drug, it is generally recommended to take 15 to 30 minutes before meals, can promote gastric peristalsis and food downward emptying, to help digestion, take before meals is conducive to play the therapeutic effect of the drug. For the gastrointestinal stimulating drugs, it is generally recommended to take 15 to 30 minutes after meals, can reduce the stimulation of the drug on the gastrointestinal mucosa, but also promote the absorption of the drug in the stomach, in order to play a better therapeutic effect. After suffering from the disease, should be guided by the doctor, symptomatic and reasonable take the relevant therapeutic drugs, do not blindly use their own medicine, so as not to cause adverse consequences.