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 E 170 7.5/1000 OR 606 OWP 750 54 302 C 25 IP 212 logo and 069 T1 100 logo and 244 I7 VP 25 R719 CL50 DISTA 3107 ED 400 S 5 ZC 64 M150 L3 or F 195 Z 4236 CTI 121 AMBI 406 AA 13 252 or 302 Pfizer MYLAN 4250 UL 125 TL 177 643 E613 10 I54 TI 200 ADIPEX-P NxFE BCL 50 RN5 1441 0115 2790