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 G2 48 10 G 45 USL 10 25 OP 697 MYLAN 6089 DMT H7.5 325 7U0 NeevoDHA LC 77 West-ward 477 D2/1000 NL 571 RH 046 ST 150 BG-12 240 mg M 923 E 4350 1033 D2/500 G 31 401 W 100 P297 32 A533 NORVASC 5 MYLAN 5211 logo 113 54 372 amneal M161 TCL 334 LANOXIN U3A MM 453 93 757 54 769 1018