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 MP 81 5 Eisai 44-338 K 26 SZ441 RDY 664 ABRS-123 Z4 31 90 logo and 661 ZA48 DIFLUCAN 200 M RE2 AA GG 623 Tiazac 240 NAT 375 A D G SG 320 logo and 5710 1G5 par 129 W 718 540 L145 ZF 42 ZBO V01 CL 6 AA 79 TL 003 A 25 P 40 MYLAN 1400 BERTEK 750 R 100 AZ 010 L236 D 32