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 RX 526 APP 333 TARO G73 MYLAN ZE 60 nitroglycerin 0.2 mg/hr V221 C149 611 AP 045 M 725 S592 METHADOSE 40 Z 5 LZD b 777 LIMBREL 52005 93 5268 45 or 1047 4468 1009 1311 54 688 MEDA KU 262 MP 114 ACTIGALL P2 LCI 1318 54 771 P-D 916 or 624 AB1 L15 398 deplin HCQS ZA47 H 146 CL 75 V403