Pill Identification by Imprints: PZ4 Home Pill Identification by Imprints: PZ4 1 result PERPHENAZINE 4 MG TABLET Side 1: M Color: White Side 2: PZ4 Shape: Round Other Popular Drug Imprint TSL 0.4 720 1/2 L340 West-ward 254 58 75 SZ 136 logo and 4805 23 U3 GS F1Y 325 logo and 6451 T P M D54 T 21 60 T WPI 867 54 879 448 44 546 WPI 3 MYLAN MT 28 OM logo and 1116 CL 75 CT 1 BP 815 CP 331 LCI 1355 ADVIL PM T535 NB-890 A03 logo and 14 cor 135 4I logo 152 MYLAN 6900 SG 325 ML55 E 38