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 AR 788 928 638 ADAMAS 85 NALFON 400 mg WPI 3332 832 25 283 L143 logo SANDOZ 667 PROTONIX MP 273 689 M 51 M 613 353 L 298 A01 296 WATSON 461 RI1 MP 40 S 434 CA Lilly 3229 ALV 332 C 15 4 DCI 62 T91 R 200 0 8 5413 FR ZF 24 RX 504 G 343 NAT 375 G 152 FLO