I have read the side effects of Tap and it can upset your stomach. I would definitely taper like Helen said. All people I know that have had success with getting off Tap have tapered. I would go down to 2.5 a day for a week, then cut that in half for a week, then stop. It's only 2 more weeks, heck you've been on them 20 years! Take some Tums,LOL!