On going treatment. Going right or not!

My mother is on psychiatric drugs for about 3 years now. She is suffering from ocd ,the thing I want to ask is that as when she claimed the dr that she is having acidity the dr added rabeprazole two times a day, she had been eating other medicines including rebiperazole for about 2.5-3 years now. The thing I want to ask is that when ever she misses dose of rebeperazole she gets acidity and its hard to control without another dose of rebeperazole.I want to talk to some specialist to seek some help because when I was going through YouTube about rebeperazole,a dr explained that one should'nd be taking these type of medicines for such long because they can give acid rebound when the patient try to leave it.I had attached the last prescription from the dr.Also I want that the the treatment is going right or not