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 54 302 K 45 L421 RE 21 P0.5 barr 100 mg 540 AAT 052 LZ M 1743 MYLAN 3075 93 1003 VP060 E 704 MP 47 VP 011 2 02 1070 5/500 S 90 3 459 456 u10 TCL341 1207 122 SZ 438 Cdx 50 GX CL2 logo and 122 UPSHER-SMITH 0229 575 2106 BI 6 ABG E43 M 473 Ris 0.5 75 50 G-DS-75 E 205