My Daughter Has Lupus/fybro/neuropathy, Short Term Mem Loss. Her Long

my daughter has lupus/fybro/neuropathy, short term mem loss. her long time RA/lupus specialist has prescribed mychophenolate. their office spelling. Rite aid sez $500- per scrip. google screen sez $4- AT WALGREENS. seems two different scrips. What is going on??? had to fight for WellCare/CMS APPROVAL
special repeat authorization. this drives me nuts. RA Dr. is responsible/good man - besides me -- who is crazy.