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 FL 14/10 430 ENA R789 RTG-300 AZ 010 PLIVA 398 A1 or A2 or A3 or A4 1 3 Z 4235 L977 RDY HYD 100 logo 133 REL TV 1 GG 340 ML 88 88 SZ 431 CP 406 Z C 0 2 REBETOL dp Y03 BL 301 B134 54 612 MYLAN ZE 60 L 232 TENORMIN logo SANDOZ 667 AC 108 METHADOSE 40 logo and 6 49 M 1820 UCB 580 54 122 M 1 BRX 0.25