Lansoprazole capsules can be taken twice a day if the condition permits, but patients with liver dysfunction and renal hypoplasia are not recommended twice a day. However, the instructions did not fail to mention that the use of super instructions should strictly follow the doctor’s instructions. The main effect of lansoprazole capsules is to inhibit gastric acid secretion, often applied to gastric ulcer, duodenal ulcer, reflux esophagitis, Zhuo – Ai syndrome (Zollinger-Ellison syndrome). Adverse reactions include rash, anemia, leukopenia, constipation, bloating, headache, and drowsiness. Contraindications are hypersensitivity to the product. Lansoprazole capsules are taken orally, usually once a day, 15-30mg once, the best time to take the medicine is half an hour before meals. If the condition requires, it is possible to take two times a day, once 15mg, single must follow the doctor’s instructions; but there are liver dysfunction, renal hypoplasia of patients, is not recommended twice a day, it is recommended once a day, once 15mg. Lansoprazole capsules should be taken under medical supervision, do not take on your own.