3 ms·is the old insulin free yetby ruined 5y agois the old insulin free yetboublepop 5y agoIt costs 25$ in wallmart, or if you are uninsured and low income there are patient care programs that will provide it to you for free.Trasmatta 5y agoWal-Mart insulin will do in a pinch, but it's pretty garbage compared to the better formulations