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 G222 L I2 logo TG L 128 FELBATOL 400 IP 77 barr 341 T1 50 SEARLE 1461 CP109 A96 R 1 ADP bes SZ 137 L 301 SUN808 A5 OLM MARION N 940 L238 220 26 GG 929 M 171 NORPACE CR 100 mg ALEVE COLD&SINUS 393 KU 261 54 092 679 MP 116 WW 125 logo and F-C E794 T580 H 502 06/012D