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 Ortho 214 P-O NL 711 A297 BA 300 LEVOXYL N4 STO 75 AZ SV J3T G 035 A33 MF 3 GG 823 692 C181 37-4401 L257 1 85 HP 4 93 5295 100 logo and 4346 ZL 1 b 971 P 1 AN248 B 526 0891 GG 824 K 55 C133 PLIVA 471 AN 442 logo and 88 ELP 20 A23 UHE 349 NALFON 400 mg