Aunt Nanny, the nurse sent me a link to a coupon which I printed and brought to Walgreens. It is a Goodrx discount drug coupon for 60 vials. There is info for the pharmacist: member id, rxgroup, rxbin and rxpcn. It says that the coupon"displays a contracted rate based on agreements between your pharmacy... and a pharmacy benefits manager." It has no fees or obligations and is free to use.
I can send you the numbers but I think they might be specific for my prescription. Let me know if you want them. When I refilled the prescription, I did not need another coupon.

Customer questions: 855-426-4465
Pharmacist questions: 855-782-3703
Website: goodrx.com

I can't see why this program wouldn't work for you too.