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 S 127 8 8 TI 100 8N V 1 RAPAMUNE 0.5 mg b 971 ZYVOX 600 mg MYLAN 6899 WATSON 853 U25 M75 60 98 32 M Z2 AAT 101 93 5512 ZD 19 ER 4 G 252 568 100 mg EP 340 TV U4 S 368 TV 2 RX904 L146 DAN 5561 MF G 0 Y2 or P A-264 B082 H568 44 531 GG 771 P F SEARLE 2762 BRX 4 VASO 2.5