DEPO-MEDROL (WITHOUT PRESERVATIVES 80 mg/ml Suspension) is a non-preferred brand drug on the Reformulary.  Tell me why

There is a generic version of this drug that works just as well and costs you less.

There are alternatives that work just as well and could cost you less.

DEPO-MEDROL (WITHOUT PRESERVATIVES 80 mg/ml Suspension) is used to treat  
Rheumatoid Arthritis