after aerosol doses ( aero-amb ) of 1.6 mg/kg per day , the mean concentrations of amb in the lung were 2.79 micrograms/g after a single dose and 9.88 micrograms/g after four doses , while the drug was undetectable ( less than 0.1 micrograms/g ) in serum , spleen , liver , kidney , and brain .
C0086045
concentrations
C0006104
brain