If instructed (see appointment letter), you may be required to stop all stomach medication such as proton pump inhibitors (Losec, Nexium etc) and antacids for 24 hours before the test. You should stop all pro-motility agents such a domperidone, erythromycin etc 72 hours before the test. You may take all other essential medicines, but if in doubt please ask us.
You should not have anything to eat for 6 hours before the study (from midnight if you appointment is before 12pm). You can drink up to 250mls of water (half a pint) on the morning of your study. Otherwise, you do not need to do anything before your arrival at the Unit.