Effect of Pantoprazole on the Symptoms of Acid Reflux Disease in Adult Patients (BY1023/M3-341)

Main Inclusion Criteria: * Written informed consent * Outpatients of at least 18 years (21 years in Argentina) * Patient considered to have GERD symptoms Main Exclusion Criteria: * Acute peptic ulcer and/or ulcer complications * Systemic glucocorticoids or non-steroidal anti-inflammatory drugs (NSAIDs) including COX-2-inhibitors (\> 5 days on demand but not more than 3 consecutive days) during the last 28 days before study start (except regular intake of acetylsalicylic acid at a dose up to 163 mg/day) * Intake of proton pump inhibitors during the last 10 days before study start * Female patients of childbearing potential not using adequate means of birth control * Pregnant or breast-feeding females