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 L469 MYLAN 2268 343 CORGARD 80 GG 823 TV 4 MM 01 logo 133 FL 21/10 G 5007 RX 526 M05 745 14 54 177 PA1 246 or 303 PAL 9 barr 250 mg POLY 212 CellCept 250 T 17 839 770 IP33 L16 OR 606 M15 31 62 SS-2 SP 325 813 L234 C 3 75 SONIDEGIB 200MG AN 617 1105 54 956