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 M D54 LES200 logo and 807 MP 512 K 56 N16 Theo-24 100mg ALEVE PM IP 212 44 227 D1 4 05 V267 T21 NL 790 ADP bes 2231 T 22 AZ 80 W 923 NL M MC2 ML 4 AP211 BRX 1 CL 6 SEARLE KLX C53 C162 AZ221 M 355 GG 181 ED PSE E 404 IP 271 M 473 APO T300 93 5512 E1 or D8