I took my Rx to my pharmacy to get the Ketone strips my Endo prescribed. The tech wasn't able to find it in her system. I took it to CVS, and according to to Abbotts website, CVS sells them. She told me if I had the NDC number off the box, they would be able to help me better. So I'm asking if you have a box of Precision Xtra Blood Ketone strips, would you look at the the bottom of the box and tell me the number is? I don't know if it says NDC or not but maybe it is the bar code number? Or should I just call Abbott? Thanks for any help.