Pill Identification by Imprints: M 542 Home Pill Identification by Imprints: M 542 0 results Nothing Found!!! Other Popular Drug Imprint R1 A 100 SC 800 3641 GG 962 2775 10 MIA 1272 WATSON 404 FENTANYL 1600 DX 31 TN 4 A 2 26 AN 521 M77 T 174 35 78 356 logo and 511 AV1 L994 826 ZC17 IG271 ZC 08 M 414 AA 99 TZ 2 498 par 219 TI 01 TR TMC M A11 AN 641 APO 134 B135 logo and 7 I43 I54