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 7.5 logo and 3063 647 KEFLEX 250 mg WPI 867 R 50 E223 4853 V NL C IP 220 NA 500 A01 IB200 M GP2 554 LCI Andrx 826 INDERAL LA 80 T20 CL61 VS320 ZA47 P294 SZ 249 ADVIL PM LILLY 4420 MYLAN 6897 I-2 M 35 TEVA 7590 Metanx SD 9 I4 MIA 106 102 I 17 M C NOVO 291 U38 54 524