Pill Identification by Imprints: E 221 Home Pill Identification by Imprints: E 221 1 result METFORMIN HCL 1,000 MG TABLET Side 1: E 221 Color: White Side 2: Shape: Oval Other Popular Drug Imprint MYLAN DE 5 G 3721 PLIVA 323 I86 954 CL 38 200 DAN 10 GG N7 b 97 par 258 C 73 114 54 735 ALEVE PM L476 LCL M945 I 50 MP 577 SZ441 1032 LAN 1231 WPI 3629 TY325 PAL 6 EP 116 par 087 54 339 HP 38 M 83 2088 V S552 DAN 5555 COUMADIN 7 1/2 14 or 11 WATSON 800 EP 127 C3 or P MLX 152 M D5