Pill Identification by Imprints: M 543 Home Pill Identification by Imprints: M 543 0 results Nothing Found!!! Other Popular Drug Imprint H145 C7 EK 25 HLA 20 Cdx 50 G221 MVC 25 274 D D A 31 E 48 fentanyl 1600 mcg J94 HP59 Z 4235 54 421 MT3 ZC 65 832 25 N 25 MYLAN 551 FENTANYL 1200 180 mg OP 35 93-5 54 793 F52 188 PAD 0115 R530 SA 50 L 120 OP 706 PAR 821 44-485 N 943 THIS END UP FL11 logo and 502 GE 320