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 B192 G221 Shire 54 4576 33 M B7 3 1 MYLAN 271 Advil C&S E700 MYLAN 8030 44 175 PLIVA 482 93 3107 G 035 B 260 99 P3 ACN 4 2080 44-503 M P8 P201 T1 150 WC 730 N-P OS 301 1 KLONOPIN S429 250 mg FL12 FLAGYL 250 44 226 C47 261 ML 1 Ris 0.25 Andrx 826 NV4 GG 957