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 RB97 logo and 2577 S 90 3 logo and 3062 IP 304 P 10 THIS END UP 93 7437 CPC 997 54 661 ZC 67 M 434 AN 322 IP 466 1137 KU 262 ZE67 E 410 L212 logo and H8 Q 300 C C+C CL 206 RIC or FV C1 C 22 G 32 C5 West- ward IMITREX 50 ML 31 E CL 38 200 L3T3 543 Z 5 LCE 150 logo and 3093 747 RU5