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 West-ward 202 ZC17 LAMICTAL 100 V360 L61 logo and 4366 ANAFRANIL 75 mg A 171 MYLAN 1560 SL 100 H 603 705 B-635 T2 S3 GG 55 L437 5126 V T 46 65 438 100 GG 260 L 120 U03 HP 228 PA 918 A02 Advil PM 461 80 mg T 175 V201 logo and 0.5 cor 255 93 129 346 L 34 M 137 WATSON 800 GXL 2.5