Excipients % Recovery
SPAR ENO NOR LEVO
Pyrrolidone 99.72 100.24 99.75 99.96
Lactose 99.38 99.40 100.91 100.02
Talc 100.81 99.32 99.42 100.77
Magnesium stearate 99.57 101.06 100.37 99.11
Starch 98.26 99.64 99.31 98.17
Table 4: Recovery of quinolones in presence of different excipients.