Pill Identification by Imprints: M 547 Home Pill Identification by Imprints: M 547 2 results MERCAPTOPURINE 50 MG TABLET Side 1: M 547 Color: Off-White Side 2: Shape: Round MERCAPTOPURINE 50 MG TABLET Side 1: M 547 Color: Off-White Side 2: Shape: Round Other Popular Drug Imprint K 13 ZF 24 logo and 051 P212 P11 IL 3584 DF NICHE FL 14/10 G 343 4 9 CM LANNETT SZ244 L 40 93 5296 O23 BMS 300 MG HP 194 086 P-112 PROSCAR 832 2 1/2 239 or 291 L461 L441 MEDROL 8 GGD6 LIMBREL 52002 464 40 mg logo and 5710 BN4 44 159 93 294 G433 300 mg CA RP 868 ALV 196 EL510