Pill Identification by Imprints: Q21 Home Pill Identification by Imprints: Q21 3 results METFORMIN HCL ER 500 MG OSM-TB Side 1: Q21 Color: White Side 2: LU Shape: Oval METFORMIN HCL ER 500 MG OSM-TB Side 1: Q21 Color: White Side 2: LU Shape: Oval METFORMIN HCL ER 500 MG OSM-TB Side 1: Q21 Color: White Side 2: LU Shape: Oval Other Popular Drug Imprint 3671 44 428 PROVERA 5 ANAFRANIL 75 mg MYLAN 7005 WAR 2 MP 973 M C1 5972 V SZ 657 f100 G 0533 EXH 12 54 199 925 3 S253 93 319 m5 P-D 007 AA 05 GG N7 P logo and 2778 MYLAN MT 7 A 17 CellCept 500 CL27 GGN5 231 L462 F 8 HP 26 332 IDT O 5 L432 ST 150 AMOX 500 Z 71 LUPIN MP 578