I have had Ivor Lewis surgery in July last year -2015. Just over a year on I think I am doing very good in the circumstances. I have been prescribed Omeprazole but for months now i have not taken any as I didnt feel I had any need . I notice from posts on this site that many if not most people take omeprazole on an ongoing basis . Is there some reason that I should do so ? Thanks for a very helpful and informative site .