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 OMEPRAZOLE 20mg L008 K106 M C P201 M135 100mg 54 085 ML 30 4893 F 84 DAYPRO SZ 438 US 10 RE 20 logo 673 LANNETT 151 638 ANI 232 GC C 22 5553 A 37 VIBRA logo and 4356 5.7 P 2 G 3717 435 CDT 254 C 745 126 MYLAN ZE 60 RH LCI 1354 SG 326 AA 820 UL 125 AMA RYL