1, taking tetracycline drugs, erythromycin, metronidazole, cimetidine should be avoided when eating milk, dairy products, soy products, Brassica juncea, black fungus, seaweed, nori, etc.. Because the calcium ions in these foods can react with the above drugs to generate insoluble compounds and reduce the effect of the drug. 2, taking flavopiridol, tetracycline, erythromycin, vitamin B complex, iron, rifampin, dipyridamole, pancreatic enzyme, amylase, pepsin and other drugs should avoid drinking tea, because the tannic acid in tea will react with the above drugs and reduce the effect of drugs. 3, taking hormones and anticoagulant drugs during the animal liver should be avoided, otherwise it will make the hormone failure. 4, taking aminopyrine, compound aminobarbital, compound acetaminophen and other drugs containing aminopyrine ingredients should be avoided when eating cured meat, to prevent the amino acid in the drug and cured meat in the sodium nitrite generated carcinogenic effect of nitrosamines. 5, taking cimetidine, furosemide, diazepam, clonazepam, aminophylline, caffeine and other drugs when it is necessary to avoid smoking, because the polycyclic aromatic hydrocarbons in tobacco oil can accelerate the metabolism and inactivation of these drugs, which will weaken or offset the efficacy of the drug. 6, when taking sulfonamides and sodium bicarbonate, should not eat acidic fruits, vinegar, tea, meat, eggs, etc., otherwise it is easy to form crystals in the urinary system due to sulfonamides and damage the kidneys, or reduce the effectiveness of sodium bicarbonate. 7. Fish should not be eaten at the same time when taking isoniazid because fish contains a large amount of histidine, which can be turned into histamine in the liver, and isoniazid can inhibit the decomposition of histamine, causing its accumulation in the body and poisoning, resulting in headache, dizziness, conjunctival hemorrhage, skin flushing, palpitation, facial numbness and other symptoms. 8, when taking vitamin K should not eat at the same time rich in vitamin C hawthorn, pepper, fresh dates, eggplant, celery, tomatoes, apples, etc., because vitamin C can decompose, destroy vitamin K, thus weakening its effectiveness. You should not eat pork liver when taking vitamin C. Because pig liver is rich in copper, and the presence of copper will make vitamin C oxidation to dehydroascorbic acid, making vitamin C ineffective. 9, taking thyroxine when it is advisable to eat less or do not eat soy, soybean oil, radish, cabbage, etc., because these foods can inhibit the production of thyroxine. 10, taking sedatives, tranquilizers, hypnotics, digitalis, phenytoin sodium, aspirin, nitroglycerin, heartburn, furazolidone and other drugs should avoid alcohol.