~$.37/pill for 20mg
Generic, ~$.56/pill for 40mg Generic, ~$.95/pill 20mg Brand, ~$1.10/pill 40mg Brand.
For the moment, see if your doc will allow you to use generic Omeprazole (aka, Prilosec OTC). While there are better things out there, it might work as a stop gap measure that's not as extreme as Reglan.
Good luck.