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 H 103 logo and 004 11.4 24 CM2 Centrix 133 L463 Mucinex Pin-X GG N6 44 326 AMGEN 629 NEXIUM 20mg CORTEF 10 MUTUAL 868 G443 5126 V 603 AS 400 M 261 L413 PARNATE SB M522 H22 M B8 MOD 100 93 089 960 MP 441 AN 521 LILLY 3251 ZE67 555 606 T546 VGR 100 ZA-36 H 2 L734 M164