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Tea contains some components, which are easy to react with some drugs, especially Chinese medicine contains alkaloids, protein and so on. In addition, tea contains caffeine. If you take sedatives, you should not drink tea.
From the perspective of traditional Chinese medicine, tea itself is a traditional Chinese medicine, and its components such as xanthine, polyphenols and theanine all have pharmacological effects. They can also react with other drugs or elements existing in the body at the same time, affecting the curative effect of drugs and even producing toxic and side effects. According to related literature, tea drinking time should be prohibited or avoided when taking the following drugs:
1, traditional Chinese medicine, 2, drugs containing metal ions, especially iron supplements, 3, antibiotics and antibiotics, 4, digestive enzyme drugs such as pepsin tablets, pepsin mixture, multienzyme tablets and pancreatin tablets, 5, antipyretic and analgesic drugs, 6, antacids, 7, monoamine oxidase inhibitors, 8, adenosine enhancers, 9. Alkaloids, berberine (berberine), ephedrine, quinine and terodine, glycoside drugs such as digitalis, digitalis toxin, digoxin and lactobacillus, a living bacterial preparation, can also be precipitated or adsorbed by tea polyphenols. Therefore, tea should also be banned when taking the above drugs.
The influence of drinking tea on many drugs is unknown, and the relationship between new drugs and tea ingredients remains to be studied and observed. For some patients with diseases, even if they don't take the above drugs, don't drink tea or only drink a small amount of tea, such as insomnia and neurasthenia, active gastric ulcer, duodenal ulcer, iron deficiency anemia and so on. Patients with habitual constipation should not drink more tea, because polyphenols in tea have astringent taste, which can reduce intestinal peristalsis and may aggravate constipation. Excessive drinking tea in patients with hypertension and heart disease may increase blood pressure and heart rate, which is unfavorable to the condition.