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 BRISDELLE NC 100 XP 44 227 MYLAN AC I 13 M F6 93 5527 S408 850 UCB 584 1 1 WELLBUTRIN 100 D10 Z3 or P SZ 135 logo and 242 93 753 ucb 500 BL L1 K 44 K 26 M F1 G 171 E58 MYLAN DA 15 AP 045 K 40 ML54 Vivelle-Dot 0.05 mg/day R P MYLAN 6089 D15 D 32 CL8 Tiazac 420 A 45 K 46 54 092 logo and YD K 102