IN VITRO STUDIES FURTHER DETAILS
In Vitro Study No: 247
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
Cortisone
Not Given
Acetone
Rat
Dermatomed to 0.35mm
Not Given
0.64
Static
Saline
32
Water Bath
24
24
2
Radiolabelled (14C)
RESULTS
% Recovery
+/-
% In Stratum Corneum
+/-
% in Viable Skin
+/-
% Penetrated
+/-
% Absorbed
+/-
s-s-flux (mcrg/cm2/h)
+/-
kp (cm/h)
n
Lag Time (h)
6.3
2.3
8
NOTES
Female Osborne-Mendel rats of 3-6 months of age were used. Further experimental detail is available in Bronaugh et al. J. Invest. Derm (1981) 76;94. The results were given as +/- SEM I have changed this to SD for the database.
REFERENCE
Methods For In Vitro Percutaneous Absorption Studies IV: The Flow-Through Diffusion Cell (1984) J. Pharm. Sci., 74 :64-67