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 M605 LAMICTAL 150 GS FH2 WATSON 414 204 BUMEX 2 F 85 WATSON 783 C 22 U 168 L462 65 MYLAN 197 CL90 Z46 L 35 OP BCL 5 172 C53 n 358 Macrobid CP 331 54 331 C 286 logo and 63 WATSON 408 7P5 20LA TE TE L234 G 3740 I62 SZ 201 MCR 117 93 208 GLUCOTROL XL 5 MYLAN 6899 H 2 AMT