Pill Identification by Imprints: WPI 3739 Home Pill Identification by Imprints: WPI 3739 1 result HYDROMORPHONE HCL ER 12 MG TAB Side 1: WPI 3739 Color: Dark Yellow Side 2: Shape: Round Other Popular Drug Imprint 230 10 or 20 LH1 93 089 ZC 15 1 RP MP 114 L48 NORCO 071 Estradiol 0.075 mg/day IP 464 W 1034 logo and 5712 7152 MICROZIDE MPC 500 253 logo and 241 LAMICTAL 150 E8 AN 642 53 GP 207 73 T91 22.5 mg C1 or C2 or C3 or P RX616 M A20 M 58 M 54 A33 S 370 E 56 GG 621 M S25 7154 E3 or C2 MP 445