My medical plan is self paid blue cross personal choice.
They pay I think 70-80% for Generics.
50% for name brands (wether there is a Generic, or not!). Grrr.

Anyway, My point is, ask your doctor for samples.
And, assess wether it really helps.
He may be able to keep you in enough samples....
That'd be between you and your doctor.

I don't know what kind if any med plan you have, but, maybe your Doctor may need to write something for you?
(I think the companies like to give samples for off label use, so that it can become established as a "Labeled Use".)

Just a thought....

Pete