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 CY P-2 M AC 180 mg IP 190 MYLAN DE 5 Fentanyl 100 mcg/hr DG1 TL 707 NTBC 5 mg PFIZER 396 471 CL48 2 02 GZ02 8 06 ECR 86 RSV 20 M 617 D-3 CRIXIVAN CH AZ 010 7153 VANDA 20 MG MX2 TAM A510 EGLT 60 LAMISIL 54 306 G222 A3 L75 Estradiol 0.05 mg/day CL 5 75 50 logo and 2891 G71 SZ 986