Pill Identification by Imprints: 54 420 Home Pill Identification by Imprints: 54 420 2 results MERCAPTOPURINE 50 MG TABLET Side 1: 54 420 Color: Pale Yellow Side 2: Shape: Round MERCAPTOPURINE 50 MG TABLET Side 1: 54 420 Color: Pale Yellow Side 2: Shape: Round Other Popular Drug Imprint ETO 200 MG LOPRESSOR EK 25 16 SZ 788 E 647 1507 WPI 1000 logo and 2838 MYLAN 351 G 30 P 60 L3 259 or 310 93/7441 AN 643 A-263 C6 E 17 PLIVA B2 92 1310 3126 M L23 GM 4 L115 R717 GG C6 MSD 207 792 L 298 D 50 S20 par 087 M F6 Lilly 3234 PROVIGIL GSI500 CLL 93 5295