I have high blood pressure, a hiatus hernia and barrets ostophgaus of which i am given medication of omeprazole 20mg, amias 16mg and bendroflumethiazide 2.5mg. recently they changed my tablets from pariet to omeprazole to save costs. I have been feeling very ill with symptoms of dizziness, disorientation, blurred vision and a severe dry mouth. Also I have blocked sinus s. I am always very tired and the docs have come back with nothing from my blood tests. What can this be???
Hello! Welcome on Chat Doctor! Regarding your concern, I would explain that your symptoms could be related to a sinus infection. It is less likely that your symptoms are related to switching to omeprazole, as it is a similar Chat Doctor.  Coming to this point, I would recommend performing sinus X-ray study coupled with a sinus discharge study. If these tests result normal, I would recommend trying to switch again to pantoprazole for some days. If this helps improve your situation, it would indicate possible low tolerance to omeprazole. You should discuss with your doctor on the above issues. Hope you will find this answer helpful! Wishing good health,