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 SCI logo and p M 445 Z8 logo and TE RAPAMUNE 0.5 mg U 34 9 5 A223 M 572 432 GG 930 TV U2 B 566 WW969 E5 or E6 BENTYL 20 E0 ML 57 651 R2 N 5 U3 AC54 BP 813 TCL 280 A CJ WW 268 62.5 logo and DS 100 logo and LD 253 or 306 UPSHER-SMITH 0084 P 4 745 A 16 ATN 100 7.5 logo and 2779 MP 84