Hi.. Thanks for the query.. I have gone through your query and can understand your concern. As per your complain and presentation of symptoms dry mouth can be caused by gargling with mouthwash and although the dryness is transient and does not remain very longer. I would suggest you to limit the use of mouthwash and go not gargle more than twice a day. Pentowok that contains active ingredient Pantoprazole can cause dry mouth in some cases. You should wait and watch for a week and if still the dryness continues then consult your physician and get the dose of medicine reduced or changed to other Proton pump inhibitors.. As of now chew sugar free chewing gums as it helps in stimulating saliva flow.. Drink plenty of water. Hope this information helps.. Thanks and regards. Dr.Honey Nandwani Arora.