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 AN 735 57 71 A10 MYLAN 7150 TCL 334 M C52 FENTANYL 400 MCG 54 735 E 415 TL388 U41 KEFLEX 250 mg 5410 395 CYP 93 5527 1034 TENCON MJ 755 MP 83 logo 0023 TV A18 M 64 P3 OV 111 W W J1 0630 25mg IMO AN 361 K 31 APO TI-4 LILLY 3251 WPI 3699 7010 TEVA 7592 2876 0.25 3 0 APO 041