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 T52 RI H 01 HYZAAR M 090 L141 DYN-055 L441 637 logo 752 TEVA 7594 S 127 V401 C 54 G 422 85 G80 349 D3 15 mg 514 SUPPORT 500 P75 261 W 1035 GILEAD 4331 GG 63 G 1 HP 26 TE VA GX CE3 A300 MUTUAL 899 NA 500 logo and 5710 b 572 A 151 CL64 P62 Q50 FX100