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IN VIVO STUDIES FURTHER DETAILS

In Vivo Study No: 195

METHODS

Chemical	Membrane	Concentration mg/ml	Concentration mg/ml	loading (mg/cm2)	Species	Site	Area (cm2)	Occluded?	Exposure Time (h)	Analytical Method
Haloprogin	Not Given		0.004	Acetone	Human	Forearm	13	2	24	Radiolabelled (14C)

RESULTS

Length of Study (h)	% Recovery	+/-	Dose remaining on surface (mg)	% remaining on Surface	Dose remaining in stratum corneum (mg)	% remaining in stratum corneum	Dose remaining in the viable skin	% remaining in the viable skin	Amount Absorbed (mg)	% Absorbed	+/-	% Absorbed
120									0.00572	11	3.74	11

Length of Study (h)

% Recovery

+/-

Dose remaining on surface (mg)

% remaining on Surface

Dose remaining in stratum corneum (mg)

% remaining in stratum corneum

Dose remaining in the viable skin

% remaining in the viable skin

Amount Absorbed (mg)

% Absorbed

+/-

% Absorbed

120

0.00572

3.74

Maximal Flux (mcrg/cm2/h)	Average Flux (mcrg/cm2/h)	+/-	Time Plasma/Blood Levels Peaked (h)	Peak Blood Concentration (mg/l)	n	kp (cm/h)	Lag Time (h)
					2

NOTES

The % applied dose recovered in the urine was divided by the % dose recovered in the urine after intravenous administration to give the % absorption. The method was as that of Feldmann and Maibach. J. Invest. Derm. 52 (1969)

REFERENCE

Skin Permeability In Vivo Comparison In Rat, Rabbit, Pig And Man (1972) J. Investig. Dermatol., 58 :114-123