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 G264 5544 NEORAL 25mg G5 AP 045 A25 CPC835 logo and 401 T1 125 B75 E 56 MP 14 84 8 mg 333 449 176 ZF 22 UCB 500XR EP 138 R150 R531 U 34 I 1 7 M N4 8 08 147 POT 10 WW929 597 Tiazac 120 C 73 PD 527 M 724 RD27 GG 962 ELN 60 U85 O20 URETRON D/S