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 21 I 10 399 TV 6 ZA-10 V268 508 T0101 n 351 54 107 T1 100 PD HE1 M PD6 93 311 BMS 400 mg 14 A D G L 35 54 463 343 STO 75 SCU2 R135 S3 or P 393 M 75 logo and 64 44-526 93 27 606 391 3604 337 PAD 0180 GG 431 BAC 20 CET V41 AC359