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 G 422 ASPIRIN L 54 511 MYLAN 1261 L 125 logo 20 GG 168 54 543 E 131 2 or 4 255 54 107 93 7436 EP 905 E51 W 30 M A7 MVC 75 93 7438 ML 22 54 306 A538 508 RU5 3432 270/80 Tandem E 2 1052 MUTUAL 401 376 NT 150 A 325 OV 111 WW 948 669 Estradiol 0.025 mg/day (Once Weekly) SD 12 E9 C181