Great, to know that tranisitioning to H2 is possible. Probably going to use the weaning off approach that stickyrice mentions. The PPIs were apparently never studied for long term use and after what happended with Zantac its buyer beware. Also recent mendium term studies show an increased risk of Gastric Cancer, a chance I am not willing to take.

" Long-term use of PPIs was still associated with an increased GC (Gastric cancer) risk in subjects even after HP eradication therapy"
"The long-term use of proton pump inhibitors (PPIs), a class of drugs commonly used to treat acid reflux, is linked to a more than doubling in the risk of developing stomach cancer."
"After a median follow-up of 5.0 years, the use of PPIs was associated with a 45% increased risk of gastric cancer compared with the use of H2RAs"
You can google the quotes and see the links and articles