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 S 571 AN 351 E 71 1204 RAPAMUNE 1 mg GXL 5 12 21 2122 U36 GG 124 538 SCU 93 7334 54 331 W-30 A 16 WATSON 488 C26 GG854 GG854 POT 20 RI E 84 TARO 56 54 544 M450 724 W 29 191 VP010 KU 487 TI 01 TAK ALG-12.5 GGN6 logo and 199 93 7436 AN 41 MP 14 AA 820 266 473