Pill Identification by Imprints: E51 Home Pill Identification by Imprints: E51 1 result MEPERIDINE 100 MG TABLET Side 1: E51 Color: White Side 2: Shape: Round Other Popular Drug Imprint 50 223 NL4S T33 54 771 400 M 134 ZC 07 EB S1 or P 056 DF MYLAN DA 5 logo and 57 HCQS GG 439 RT C 17 C324 500 4833M 140mg I33 H119 B853 1201 HP 44 cpc2859 214 U37 KU 487 logo and 182 logo SANDOZ 651 BG-12 120 mg IP 179 FENTANYL 1200 A263 30 mg n 574 E 801 T 175 EP 117 IMU RAN 50