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 T 16 334 65 ZLP TCL 016 EK 25 MYLAN MT 28 M378 S4 BCL 10 381 logo and 038 E 882 T91 logo and DS 100 AP 84 GX EG3 ZC44 MYLAN 152 497 FLZ 100 R137 54 311 240 mg 44 546 W122 logo and 103 CPC 76 Advil A&CR SG 326 PAR 821 MYLAN G2 ZA-11 ALEVECS B167 804 TR R-264 H 501 CIBA