Take medicine try not to drink lemon water, especially not directly with lemon water delivery, the main component of lemon is vitamin C and citric acid, many drugs on citric acid will react, will reduce the effectiveness of the drug or accelerate the decomposition of drugs, is not conducive to the absorption of drugs in the small intestine. There is also the possibility that because of the fruit acids increase the side effects, causing harm to the human body, especially antibiotics, encountering acidic substances will be rapidly decomposed, reducing the effectiveness of the drug can not achieve the desired therapeutic effect. There are also some anti-inflammatory and analgesic drugs, which have a great stimulating effect on the gastric mucosa, if served with acidic lemon water, it will intensify the stimulation of the stomach wall, which can lead to serious gastric bleeding or the risk of gastric perforation. For health reasons, it is best to take the medicine with warm water, which has no effect on the effectiveness of the medicine.