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 PLIVA 469 m 200 NT 400 M 113 R6 E 17 SG 326 P24HR INDERAL LA 160 721 Carnitor ST 922 E 34 1/4 TL 171 CTI 141 PC18 N009 T010 SC 1 BVF TCL 081 Lofibra 200 mg I 21 R471 GPI P-60 logo and 256 b 171 VASE 10-25 3974 CK IP 465 AA 73 MYLAN 8008 5.7 AMA RYL MYLAN 5211 LDK 150MG 54 327 MP 273