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 ULTRAM U13 54 215 S405 750 ABRS-123 APO T100 logo and 660 M P8 PAL 6 GG 256 DROXIA 6337 400 CFZ RIFATER AC 357 ANI 241 LK 50 PFIZER 399 HP 11 BA 300 44 548 I 49 805 93 733 L 36 U39 CP 403 54 420 833 5 M T1 44 615 or 44 544 44 546 M 722 349 59743 G 0522 E145 3 7 A/P 12.5 / 30 logo and 2907