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 M Z2 ZF 42 par 121 L 177 A2 25 BVF 120 TL 171 V264 U36 L 67 K0 54 795 LOTREL 0379 742 FL 10 I 22 E 101 N L G 6 NORTRIPTYLINE logo and ZF A 48 I33 KC M20 TL 113 LILLY 4115 M A10 022 Nitro-Dur 0.6 mg/hr 93 733 SIDEROL IL 3581 West-ward 257 E 10 285 XM BERTEK 670 18mg S G B P