I didn't know if this would actually work, but the medicine price was 1/3 of what I would have to pay otherwise, so I decided to try it. I read the mixed reviews and thought it may be a hassle, but for me, it was really easy. Walmart was the cheapest pharmacy for my medicine, so I called them and asked them if they'd take it. The lady who answered said, "Oh yeah, those discount codes work." and didn't seem wary of it at all. So I went in, still unsure. She put in the prescription, keyed in the code and the amount was exactly the same as what was on the website. So I've only tried it once, but it worked. Also, the lady in front of me in line was using it too. She said she has done it quite a bit - at Walmart and Kroger - and had never had any trouble at either, so i found that encouraging. I just thought I'd post for those like me who were worried that it was a scam or that the price would be 3x as much when you got there.
Thank you for sharing!