Pill Identification by Imprints: M451 Home Pill Identification by Imprints: M451 1 result PHENAZOPYRIDINE 200 MG TAB Side 1: M451 Color: Reddish-Brown Side 2: Shape: Round Other Popular Drug Imprint V221 7.5 mg cor 256 SP 325 Y Y bull symbol H10/325 54 242 L020 TCL 340 logo and 242 T0101 L133 C282 G80 SFE E 655 N 225 680 EXTRA STRENGTH BAYER PLUS TCL242 logo KC I20 1182 C 25 A 33 581 PFIZER 398 H150 V-Z-F 805 H 146 MYLAN 7155 I6 I113 C73 G 4900 93 900 W 782 P13