Pill Identification by Imprints: P F Home Pill Identification by Imprints: P F 2 results THEOPHYLLINE ER 400 MG TABLET Side 1: U 400 Color: White Side 2: P F Shape: Round THEOPHYLLINE ER 600 MG TABLET Side 1: P F Color: White Side 2: U 600 Shape: Rectangular Other Popular Drug Imprint ZA48 CM3 LCI 1445 T 100 DX BP E 129 IP207 VISMO VALTREX 500 mg 143 GX CM3 44 438 CL 042 Tofranil-PM 75 mg GG 64 logo and 076 G-X E P logo and 25 mg HLP 20 L962 445 m 200 54 190 54 521 MYLAN AC I 02 E 19 1441 logo and 5312 54 199 G 70 S 434 HYD 60 LIMBREL 52002 ZC 80 MT3 AN 641 GIL 304 U 129