Pill Identification by Imprints: M450 Home Pill Identification by Imprints: M450 1 result PHENAZOPYRIDINE 100 MG TAB Side 1: M450 Color: Reddish-Brown Side 2: Shape: Round Other Popular Drug Imprint HYZAAR AN 521 AP205 4853 V C35 or P P12 ML 63 Advil A/S PLIVA 433 I10 GG 518 MP 168 RP 700 7153 1427 GG 58 APTALIS 25 M C28 RJ71 CN 1 DROXIA 6337 EV0204 AK e5 113 54 372 logo 631 GG 124 894 F 8 E 139 N T4 229 n 353 7663 IBU 400 logo and 4806 253 or 306 E 38 RG78 OS 212