Pill Identification by Imprints: NPR EC 500 Home Pill Identification by Imprints: NPR EC 500 1 result EC-NAPROSYN EC 500 MG TABLET Side 1: NPR EC 500 Color: White Side 2: Shape: Oblong Other Popular Drug Imprint CL33 C 89 logo and F-C 928 M 145 FL 1 U31 ALTACE 2.5 mg 2 56 G453 M C53 SZ Z4 L132 M77 PD 223 M D5 54 328 S593 0796 TZ 7 AA 14 PAL 3 M367 1080 ella CL60 BVF 120 MCR 313 EP 905 SZ 309 DAN 5708 G 4 M151 MOT logo and S25 1000 M Y 45 S429 500 mg MUTUAL 899 44-491 or 44-466 6