Table 2.

Relative organ distribution of doxorubicin delivered as free doxorubicin vs. targeted liposomal doxorubicin

	% of total in the 5 organs		$\text{Ratio}:\frac{\mu \text{g}\text{Dox}\text{per}\text{g}\text{liver}}{\mu \text{g}\text{Dox}\text{per}\text{g}\text{organ}}$
Organ	free doxorubicin	liposomal doxorubicin	free doxorubicin	liposomal doxorubicin
Heart	4.2 ± 0.7 %	0.07 ± 0.03 %	1.9 ± 0.7	171 ± 64
Kidney	18.9 ± 1.1 %	0.98 ± 0.27 %	1.0 ± 0.3	26 ± 8.1
Liver	71.5 ± 2.5 %	97.6 ± 0.6 %	1	1
Lungs	4.0 ± 0.7 %	0.07 ± 0.03 %	3.0 ± 1.4	163 ± 85
Spleen	1.5 ± 0.2 %	1.2 ± 0.3 %	5.0 ± 1.5	10 ± 4.1

Values are calculated from the data presented in Fig. 5., and are mean ± s.e.m, n=4.