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 Relagesic M455 IB 200 WELLBUTRIN SR 200 WPI 3699 E 102 f100 21 G M 10 1252 BMS 200mg Pepto Bismol CTI 121 HLP 10 RP 868 0.25 44 227 M F4 N006 N 740 S4 logo and 117 V264 logo 112 EP 136 M 530 AC40 MYLAN FE 67 AN 777 WPI 844 M 060 T569 or B6 572 Tri EL501 N T4 U 400 72 U42 376 M B1