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 MYLAN 2537 A-002 Macuvex G 152 U 785 UNISOM 30 L 350 393 E 157 ASC 116 CORTEF 10 R-264 OR 606 AC40 PREMARIN 0.625 CL62 CL47 SC 800 M 545 N 60 L 239 A 04 T 100 M 113 G 3742 L 166 E 50 44 382 Estradiol 0.1 mg/day MYLAN 2046 WELLBUTRIN 100 GX ES7 1507 ZGNX 15 mg Black B 749 10 VALIUM N 80 PAXIL CM3