Hello ! i am suffering from bitter tongue since 2 years . my doctor told that i am suffering from GERD ,stomach ulcer and irritation in esophagus.he suggest me to take OMEPRAZOLE.after taking this medicine i feel more bitter tongue. i told this effect to my doctor . he suggest me to take pantoprazole but my tongue still remain bitter. why this happen to me ? what is the cause ? is there any solution of it?