Pill Identification by Imprints: WPI 500 Home Pill Identification by Imprints: WPI 500 2 results METFORMIN HCL ER 500 MG TABLET Side 1: WPI 500 Color: Blue Side 2: Shape: Round METFORMIN HCL ER 500 MG TABLET Side 1: WPI 500 Color: Blue Side 2: Shape: Round Other Popular Drug Imprint E 4354 RH 046 WELLBUTRIN 100 555 606 F20 100 920 46 CYP 190 M 318 b1011 BP 706 logo and 660 S 12 K8 54 349 AN 573 SG 174 A44 44-542 IP 272 NP M 722 IL 3581 J66 RX693 GG 21 M L53 L199 Z350 50 mg 44 585 VIP103 CRESTOR 20 54 137 M 54 VP030 LOTREL 2255 OXC 600 INDERAL LA 60 346 B 1