In general, you can continue to take prescribed medications before and after gastrointestinal endoscopy without modification. Please take all medications on the morning of your procedure. Medication should be taken with a small amount of clear liquid. Please contact your physician if you are on aspirin, blood thinners and diabetic medications. Your physician will give you specific instructions regarding these medications. If you are unsure if the medications you take fall into these categories, please ask your physician.