Is the RxSavingsPlus medication discount card reputable?

We noticed these cards in a U.S. Emergency Room. Supposedly with this card anybody in the family (including pets) can get discounts on medications not covered by their insurance. The card we have is issued by Smarana. The http://smarana.rxsavingsplus.com URL and the 1–877-673–3688 toll-free number are on the card. I also see “CVS Caremark” and MinuteClinic on it.

I’m not sure about the basis for the discount. Does anybody know anything more about these medication discount cards? Has anybody used them? Any comments? On the Internet I am also finding RxSavingsPlus cards issued by other entities (American Dental Care, Hispanic Chamber of Commerce) but I’m not sure if they are from the same program…

Thank you for any information you might have!