hello there. pantoprazole is a molecule which acts on the cells which produce acid in the stomach and cause less acid to be produce. levosulpiride is a drug which increases gastric emptying time, it stops reflux of the acid to the oesophagus, it increases the gastric motility. these 2 compounds come in a combination many times because the result of the combination is greater than the pantoprazole alone in reflux. you don't have to worry. if you still have doubt, consult your physician again. I hope this helps. regards