医生开处方时,有时会告诉病人某些药需要“空腹服用”。腹中没有食物,处于空的状态即为空腹,如早上起床时和睡前。一般而言,空腹服是指餐前1小时或餐后2小时服。空腹服药最直接的好处是增加药物吸收和发挥药物疗效,避免食物影响药效。治疗骨质疏松药物:阿仑膦酸钠、氯膦酸二钠、雷奈酸锶等。增强免疫力的药:细菌溶解产物、匹多莫德等。抗菌药物:罗红霉素、诺氟沙星、氨苄西林 Doctors prescribing, sometimes tell the patient some medicine needs “fasting”. No food in the abdomen, in an empty state that is fasting, such as getting up in the morning and bedtime. In general, fasting refers to 1 hour before a meal or 2 hours after a meal. The most direct benefit of fasting medication is to increase the absorption of drugs and play a drug effect, to avoid food affect the efficacy. Treatment of osteoporosis drugs: alendronate, clodronate, strontium ranelate and so on. Enhance immunity of the drug: bacterial lysate, pidotimod and so on. Antibacterial drugs: roxithromycin, norfloxacin, ampicillin