I hadn&#x27;t realized there was such a difference between cash price and prescription price.<p>Through work currently we can use a web site to help find your cheapest place for prescriptions.  One bottle of Novolin R like you said about is about $25 from Walmart for cash price.  One bottle of the same prescription with a discount coupon is $138 dollars.<p>That&#x27;s still cheaper than Novolog&#x2F;Humalog, but how in the world is it more expensive to buy insulin with a prescription and insurance than without?  When I pay a 20% co-pay am I essentially paying my insurance company the extra money?