The purpose of this study is to prepare the controlled release adhesive patch containing naproxen. For the preparing of controlled release membrane, Eudragit, PEG and glycerin were utilized. The drug release profile and skin permeation test with vario...
The purpose of this study is to prepare the controlled release adhesive patch containing naproxen. For the preparing of controlled release membrane, Eudragit, PEG and glycerin were utilized. The drug release profile and skin permeation test with various patch were evaluated in vitro.
The release profile of naproxen from PIB based adhesive patch with various loading doses followed the Higuchi equation described Q vs t^1/2 relationship is linear.
The release rate of naproxen followed first order kinetics the range of in 1~5% naproxen loading doses. but with 7% loading dose, initial release rate was observed larger than 1~5% loading dose relatively.
In controlled release patch, the release rate of naproxen from patch was dependent on thickness of controlled release membrane. In the composition of membrane, the release rate was decreased as the ratio of Eudragit increased. The release rate of controlled release patch followed zero order kinetics.
This studies showed the good feasibility of development transdermal naproxen patch which can control the drug release using proper controlled release membrane.