Pill Identification by Imprints: M 437 Home Pill Identification by Imprints: M 437 3 results SPIRONOLACTONE 100 MG TABLET Side 1: M 437 Color: White Side 2: Shape: Round SPIRONOLACTONE 100 MG TABLET Side 1: M 437 Color: White Side 2: Shape: Round SPIRONOLACTONE 100 MG TABLET Side 1: M 437 Color: White Side 2: Shape: Round Other Popular Drug Imprint 511 ZANTAC 150 H5/325 TYLENOL 3 CODEINE VGR 25 M N3 DG1 92 par 085 logo and FHPC 400 PA46 NL 571 H 145 CP 406 BMS 300 MG logo and PB L254 G 3721 276 54 411 A5 or A6 371 par 290 WPI 500 CYP 197 AMBI 443 E4 M 1 AR 50 21 7 MS LAMICTAL XR 300 par 219 8N T598 MYLAN 162 F22 SG 322 IX N 40