I was on Reglan for a long period as I have thyroid problems that went out of wack after delivery and that caused a very low supply. I did this along with More Milk Plus and it worked wonders. It is commonly used for mothers with premies and adoptive mothers that want to nurse.
I also had problems with my milk coming in and used just the More Milk Plus, pumped after every nursing and in between feeds (even at night), drank gallons of water, and massaged my boobs. My milk came in great and only had to use a little formula until my supply bottomed out.
Good luck.