How many here are on proton pump inhibitors. I have been taking protonix for heartburn every morning for about 7 years. My general internist told me he didn't think it was such a good idea to be on these that long. But when I went back to my gastro dr. he told me that he was a specialist and to listen to him. I have tried in the past to go off them but get terrible rebound heartburn. I even tried every other day and found this also gave me occasional bouts. I'm just worried about the long term effect of taking anything this long even though the specialist assures me it is alright. Even his assistant has been on them for 15 years. I have heard recently that taking fennel seed capsules and fennel tea may be a substitute for some people. Anybody else have had any luck who take these kind of medicines.