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 DYN-080 A 2 1 5mg TEGRETOL FENTANYL 600 logo and S10 1000 M NL G 325 TUMS 3970 FLI 14 mg E448 APTALIS 5 bull symbol PC1 APO LAN 1050 S 368 R3 S 521 BI 4 93 3167 GG 929 49 555 606 ML 36 b 212 CL48 AAT 054 T 109 WW 763 SZ 225 CL 25 logo and 571 M2A4 57344 M F5 U S CL 77 CCC 500 K9