Pill Identification by Imprints: AN 321 Home Pill Identification by Imprints: AN 321 4 results NIACIN ER 500 MG TABLET Side 1: AN 321 Color: Orange Side 2: Shape: Round NIACIN ER 500 MG TABLET Side 1: AN 321 Color: Orange Side 2: Shape: Round NIACIN ER 500 MG TABLET Side 1: AN 321 Color: Orange Side 2: Shape: Round NIACIN ER 500 MG TABLET Side 1: AN 321 Color: Orange Side 2: Shape: Round Other Popular Drug Imprint CL 26 750 MG RIC H 603 M 59 584 T 5 P 2 WAR 2 04 498 EP 140 44 112 IP 466 VM B 544 2011 M 55 A2 93 3109 logo and 335 A3 L13 logo and 832 581 20mg Y MUTUAL 900 V233 RP133 M455 GX CG5 ZF 26 44 111 93 3165 WW 64 GG 258 logo and 15 or 20 HORIZON 205 783