Drinking tea while taking medication may reduce its effectiveness or cause adverse reactions, so it is generally not recommended to drink tea while taking medication. Tea contains sugars, amino acids, vitamins and a variety of trace elements, and is a natural health drink that has the effect of quenching thirst, preventing cancer and anti-cancer, preventing cardiovascular diseases and inhibiting bacterial growth. However, tea also contains theophylline, caffeine and other alkaloids, a large amount of consumption will lead to increased excitability of the nervous system, prone to insomnia. Tea contains a variety of ingredients, drinking tea after taking drugs, may react with some drugs, reduce the effectiveness of the drug, or aggravate the adverse reactions. Therefore, tea should not be consumed during the taking of drugs. In the process of disease treatment, should correct the bad habits, try to drink plain water, avoid stimulating drinks and alcohol, regular rest and avoid staying up late.