Table 1.

Ratios of anidulafungin concentrations in pleural fluid and serum

Time (h)	Anidulafungin concn (μg/ml) in:		Pleural fluid/serum drug concn ratioa
	Pleural fluid	Serum
0		4.63
1.95	0.88		0.102
2.0		8.61
3.97		7.44	0.090
4.0	0.67
5.93	0.87
8.93		6.36	0.119
8.98	0.76
21.0	0.78
21.75		4.07

^aRatios reflect the values obtained for the two sample sources at the closest time points of collection.