What Are The Side Effects Of Rabeprazole Tablets?

Hello Dr. Grief, My mother has been on Aciphex 20mg for 15-years, and all of a sudden Humana wants to switch her to generic.Which has has been on the Rabeprazole for 2-months and she is having side effects: Upset stomach, mild diarrhea, headaches, sore throat & blisters on her hands. She has also tried Omeprazole and another that started with an "L" can not remember in earlier years. I am trying to get her formulary change back with appeal letters to Humana. Very frustrated with them. I bilieve if something is not broke then leave it alone.

Any advice would help......thank you Kim McLemore-Page