Pill Identification by Imprints: 531 Home Pill Identification by Imprints: 531 4 results METHYLPHENIDATE 5 MG TABLET Side 1: MD Color: Yellow Side 2: 531 Shape: Round TRAMADOL ER 100 MG TABLET Side 1: 531 Color: White Side 2: Shape: Round TRAMADOL ER 100 MG TABLET Side 1: 531 Color: White Side 2: Shape: Round TRAMADOL HCL ER 100 MG TABLET Side 1: 531 Color: White Side 2: Shape: Round Other Popular Drug Imprint 12 25 N 3 755 GS EUG 225 M Z2 L151 5124 V LLORENS LA16 E122 CL17 FL M C2 S77 GG 823 MYSOLINE 250 M P9 FL 1 A06 W 516 CI AHI 4 IBgard AN 734 S 226 54 352 M 261 M 23 GG 260 logo IDL 75 E 48 L 27 RI18 ZC18 ZANTAC 300 25 42 EL501 GS MZ1 MYLAN 5010 WATSON 3551