EDETOX logo

IN VITRO STUDIES FURTHER DETAILS

In Vitro Study No: 1143

METHODS

Chemical

Conc. (mg/ml)

Volume (ml)

Loading (mg/cm2)

Vehicle

Species

Membrane

Site

Area (cm2)

Cell Type

Receptor Fluid

Temp. (oC)

Temp. Measured

Exposure Time (h)

Study Length (h)

Occluded

Analytical Method

Naproxen

0.0361

Not Given

pH 3 phosphate buffer

Snake

Full Thickness Skin

Not Given

Static

Isotonic buffer pH 7.2

Water Bath

HPLC

RESULTS

% Recovery	+/-	% In Stratum Corneum	+/-	% in Viable Skin	+/-	% Penetrated	+/-	% Absorbed	+/-	s-s-flux (mcrg/cm2/h)	+/-	kp (cm/h)	n	Lag Time (h)
												0.0148

% Recovery

+/-

% In Stratum Corneum

+/-

% in Viable Skin

+/-

% Penetrated

+/-

% Absorbed

+/-

s-s-flux (mcrg/cm2/h)

+/-

kp (cm/h)

Lag Time (h)

0.0148

NOTES

Shed snake skin of Elaphe obsoleta (black rat snake) were used. More experimental detail is available from: M. Akazawa, T. Itoh, K. Masaki, BT Nghiem et al Int. J. Pharm. 50:53-60 (1989). The donor solution was saturated. N was between 4 and 5. The lag time was short - between 1 and 3 hours

REFERENCE

A Method To Predict The Percutaneous Permeability Of Various Compunds: Shed Snake Skin As A Model Membrane (1990) Pharmaceut. Res., 7 :1302-1306