On the preoperative anaesthesia visit, a day before surgery, the nature and purpose of the study was explained to each patient. We asked each patient to pick up on one envelop from the envelopes (randomization). Thus the patients were allocated to either Group C (control), Group L lansoprazole 15 mg or Group LD lansoprazole 15 mg with domperidone 10 mg randomly by sealed envelope method. Age, sex, ASA physical status, weight, height, BMI and the study drug given were recorded for each patient. All patients also received tablet diazepam 5 mg with study drugs. These drugs were given orally with 20 ml of drinking water at 8:00 p.m. in the evening day before surgery and 6:00 a.m. morning on the day of surgery. According to the hospital policy, all patients were fasted from 12:00 midnight. Upon arrival in the receiving area of the operating room. All patients were asked if they had been aware of any unusual feeling (side effect) after taking the study drug.