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 logo and 500-40 SVT OGT 918 H 501 161 N T4 EL 15 AK 120 E42 MYLAN ZE 40 Theo-24 300 mg M 030 A Z logo and 4804 CL9 U-S EP 116 54 277 V221 M AC IBU 800 Lilly 3231 B 566 472 VALPROIC 250 93 61 1250 ACN 8 n 794 Triax M050 C316 J 050 MP 771 GILEAD 4331 RAS PRA 80 M 725 WC 402 Advil A/S L78