Pill Identification by Imprints: R428 Home Pill Identification by Imprints: R428 2 results LAMOTRIGINE ER 300 MG TABLET Side 1: R428 Color: Gray Side 2: Shape: Oblong LAMOTRIGINE ER 300 MG TABLET Side 1: R428 Color: Gray Side 2: Shape: Oblong Other Popular Drug Imprint L374 N023 H144 42 AN 41 ZC40 CP109 logo and 257 FENTANYL 600 H5 UL 125 118 44-470 7.5 mg 7.5 mg Erymax 250 mg 93 9133 R531 ZF 15 LBH 10 mg APO TI-4 ZA 64 EXELON 4.5 mg RP120 AN 513 4895 93 3125 ZC 59 SANDOZ 573 M CL3 68 85 54 848 AUGMENTIN 875 MT1 ZC56 H150 51 30 M RN V10 RX 774 103