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 I1 AN 511 V270 MYLAN TM 5 G 8 PFD 267 mg M 735 RJ71 1122 1122 VP 031 FIORICET FIORICET BMS 6063 C369 M 1 668 G00 M15 HYD 60 CC 704 G 022 GSK SCI 503 1310 TL 001 C 94 252 370 5/325 1 U37 AN 475 M PD1 G71 ADIPEX-P 37.5 8310 1249 FT E 103 TV 5655