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 2470 0.2 logo and 667 5382 7153 652 GGD7 AUM 103 2369 M P8 CMZ 200 ST 300 54 783 463 CL 43 W D 92 RU20 G 343 186 B 912 HPC 200 UT 0.125 SG 321 Prosteon G 022 2083 V DAYPRO ZA 66 Ortho or Ortho 535 ap 107 ST 150 OMJ 100 44 453 MYLAN CF 45 logo and 342 WC-003 G 152 F51 M 38 2 56