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 101 T4 RTG-300 ZC 76 M 253 ML 62 RD 73 AMG MIA 110 WATSON 528 G 12 NM1 M 1860 SR 375 C 100 n 358 LES200 ALO300 3170 V McNEIL T 5 1/2 I82 GG 771 P2 RESTORIL 30 mg RESTORIL 30 mg MOD 100 Alora 0.1mg/day estradiol ZC 26 WC001 NATCO 425 ZA-37 IP 271 1044 HLA 20 logo and 29 A 04 NT 16 60 98 SEARLE 1001