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 BENTYL 10 RSN VS 160 982 or 983 STO 75 10 10 10 WW929 M605 JANSSEN 150 V 1 U22 E1 AP211 DIDREX 50 mynatal MYLAN 7160 W104 scu1 APTALIS 25 FX100 Rifampin 150 2130 E4 IBgard E 401 5686 D12 WAR 4 AUM 101 TY325 AS 400 VGR 100 TRICARE DHA 401 WPI 9 G 60 MYLAN 3025 logo and 54 SZ 74 5 2