Pill Identification by Imprints: U 600 Home Pill Identification by Imprints: U 600 1 result THEOPHYLLINE ER 600 MG TABLET Side 1: P F Color: White Side 2: U 600 Shape: Rectangular Other Popular Drug Imprint RI90 CL 77 CM4 755 B 546 GLYSET GG 518 25 222 E 141 VS 160 G 70 MYLAN 199 IP 146 ZE 43 PE 723 V249 VPHEME Zofran MEPHYTON W122 CL9 7033 LLORENS GG 705 GG N7 P 2 Z16 PFD par 219 GX EX1 logo and 2849 1313 AP040 MP 447 A 215 U39 4 E 720 U37 TCL 080