Pill Identification by Imprints: m 50 Home Pill Identification by Imprints: m 50 2 results CHLOROTHIAZIDE 250 MG TABLET Side 1: M 50 Color: White Side 2: Shape: Round METOPROLOL SUCC ER 50 MG TAB Side 1: m 50 Color: White Side 2: Shape: Round Other Popular Drug Imprint RI2 M 318 ER 2 321 IP 54 L Z AS+ SC C 283 EP 138 GG 634 CREON 1212 PD 532 DISTA 3104 54 213 OS AA 70 4993 OS 212 U46 227 463 TR25 D 32 VIO9111 L015 NORPRAMIN 50 par 084 G220 54 948 L489 246 or 303 N 81 MP 658 M 412 Macrobid M 41 TV 2 783 44-527 I 64