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 PROVERA 2.5 3138 IP 116 P-113 barr 24 mg IT 68 PREMPRO 223 68 -7 A602 P 2.5 MP 201 or MP 802 93 321 AN248 S592 54 299 GG 823 MYLAN TM 5 O23 WPI 100 E61 D1 or P YS 03 V232 7663 54 688 E 2 Tiazac 120 215 RI 5 57 71 logo and 833 924 VP 011 V 4172 BL 50 K8 GG 44 805 H 012