1. It is not advisable to use tea or beverages to deliver medicines

Tea water: Tea water contains caffeine, theophylline, tannic acid and other ingredients. Tannic acid can precipitate some metal ion-containing drugs (such as iron, calcium, etc.), which not only reduces the efficacy, but also causes stomach discomfort; each A variety of enzyme preparations such as multi-enzyme tablets, pepsin, etc. combine with tannic acid in tea to produce tannin protein and lose its efficacy; theophylline is a slightly alkaline substance, which can reduce the efficacy of some acidic drugs; caffeine has an exciting center , Cardiotonic and diuretic effects, if sedation, hypnosis and central depressants are taken, the effects will be offset.

Milk: Milk and medicine are taken at the same time. Milk can form a film on the surface of the medicine and gastric mucosa, which affects the absorption of the medicine. Milk can also physically or chemically react with some medicines. For example, the calcium and phosphorus in milk are easily combined with Chinese medicine. The organic matter in the milk reacts chemically to form insoluble compounds; the protein in milk can form a clot with calcium gluconate and other drugs, which affects absorption and increases the burden on the gastrointestinal tract; milk is taken with cardiotonic agents such as digitalis and digoxin At times, the calcium contained in milk can enhance the toxicity of the drug, making the accumulation of the drug poisoning.

Juices: Some fruit juices contain vitamin C, which has acidic and redox effects, which can significantly reduce the effects of erythromycin, gentamicin, warfarin, aspirin, chlorpromazine and other drugs; some fruit juices contain western Grapefruit juice components, grapefruit juice can inhibit the activity of metabolic enzymes in the body, enhance the absorption of drugs such as cyclosporine, nicardipine, midazolam, etc., increase the concentration of drugs in the blood and increase their side effects.

2. Some medicines cannot be taken with hot water

Cough syrup medicine: This kind of medicine is generally made by dissolving cough medicine in syrup. The syrup can cover the mucosal surface of the pharynx to form a protective film to prevent other irritants from contacting the inflamed area, thereby achieving the purpose of relieving cough. If you use hot water to take the syrup, it will dissolve part of the drug and dilute the syrup, reducing the viscosity of the syrup, making it impossible to form a protective film on the pharyngeal inflammation, so the effect of relieving cough will not be achieved.

Digestive drugs: such as pepsin mixture, trypsin. The enzyme contained in them is an active protein, and its "temper" is very delicate, it will denature when exposed to heat, completely lose its catalytic activity, and cannot help digestion, so it cannot be taken with hot water.

Vitamin C medicines: Vitamin C is a water-soluble substance, which is unstable and easily reverts after exposure to heat and loses its efficacy. ()

3. Take the medicine correctly according to the dosage form