Pill Identification by Imprints: E3 or C2 Home Pill Identification by Imprints: E3 or C2 1 result FEMYNOR 28 TABLET Side 1: E3 or C2 Color: Multi-Color (2) Side 2: Shape: Round Other Popular Drug Imprint A538 A175 PAD 0180 AZ 011 465 SZ442 EFF CPC 77 M E18 US 13 4 mg P-O 31 62 Fentanyl 50 mcg/hr logo and 241 395 FENTANYL 50mcg/hr RD02 475 YS 01 H152 L100 IDT O 5 MP 46 110 120 N4011 M 15 D1 IP 173 OXC 150 C 3 31 81 ASK002 e5 111 GG 506 LES200 ALO200 PTLA MX31 L 8