Pill Identification by Imprints: L42 Home Pill Identification by Imprints: L42 1 result METFORMIN HCL ER 1,000 MG TAB Side 1: L42 Color: White Side 2: LU Shape: Oval Other Popular Drug Imprint HP 146 NTBC 5 mg E 157 590 M3 NA 500 PH 034 T-E logo and Pamelor 25 mg 4891 HRA K 111 logo and 1000-20 M D27 CN 500 G 3742 ZA22 BP 301 TI 01 573 11 36 584 ZLP 9 4 FIORINAL CODEINE AMG MYLAN 731 HAW 100 DANTRIUM 100mg C 25 Cdx 50 G453 FR32 MYLAN 777 G 253 DAYPRO CM3 783 BRX 4 M 575