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 APO 021 AMA RYL 276 PROVERA 2.5 TL574 M54 M 127 SL 25 ZOCOR OBX NP 10 LIDOCAINE PATCH 5% TL 015 245 GG L7 CM1 U28 CL 84 44 397 IDA 440 A332 703 72 or 73 or 74 or 65 OWP 750 BMS 200mg G-DS-50 735 C C C logo and 805 IMI 10 UPSHER-SMITH 0229 L 165 M 255 RH38 R207 568 100 mg F 77 PA 915 24 RP120