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 would take it still for months after you're having no more problems.
However coming off too early will simply undo any healing you may have achieved & you'll go back to square one.... or get even worse...
Once you've been symptom free for many, many months then that'd be the time to consider slowly tapering off the meds.