Gastritis Support Group
Gastritis is a medical term for inflammation of the lining of the stomach. It means that white blood cells move into the wall of the stomach as a response to some type of injury. Gastritis has many underlying causes, from infection with the bacterium H. pylori, bile reflux, or excessive consumption of alcohol or certain foods or drugs like aspirin.
I read that the body starts to increase production of pepsin while acid is suppressed also, which is what digest protein and one of the causes of the burning pain. This is why you get painful rebound when stopping the drugs as the pepsin returns to normal levels slowly so you have extra pepsin plus full stomach acid which activates it all.
PPIs are dangerous. On a proper regimen one's stomach can heal faster than their tolerance for Zantac develops, thus removing the tolerance problem.
If you have burning and pain before its time to take the next dose, then your dosing may be insufficient, or your food regimen is provoking too much acid, either through infrequency or just the irritant nature of foods you intake.