Red_Star gave good advice regarding
side effects, as well as info regarding levels of stomach acid. Paradoxically, ingesting several tablespoons of cider, which is slightly acidic, will assist with GERD. Cutting to the chase the primary problem with long-term use of medications is cumulative liver damage. There are blood tests that can determine when this starts to develop. Gabapenten is (in my opinion) a nightmare on Elm street.