LI Zhi-yong, LUO Xiao-shan, SUN Dong-mei, et al. Optimization of Multiple Composite Penetration Enhancers for Bitong Cataplasm[J]. Chinese journal of experimental traditional medical formulae, 2013, 19(10): 42-45.
LI Zhi-yong, LUO Xiao-shan, SUN Dong-mei, et al. Optimization of Multiple Composite Penetration Enhancers for Bitong Cataplasm[J]. Chinese journal of experimental traditional medical formulae, 2013, 19(10): 42-45. DOI: 10.11653/syfj2013100042.
Objective: To optimize multiple composite penetration enhancers(MCPE) of Bitong cataplasm. Method: In vitro percutaneous absorption test was used by Frans diffusion cell method
with cumulative release per unit area as index
effects of 1% borneol(BO)
1.5% azone(AZ)
5% propylene glycol(PG) and 1% menthol(MT) on in vitro percutaneous penetration of cinnamic aldedyde in Bitong cataplasm were investigated by single factor test;With composite score of permeation rate
appearance and initial adhesion as index
U7(74) uniform design was used to optimize the prescription of MCPE. Result: 1% BO
1.5% AZ
5% PG and 1% MT had different degrees role in promoting for transdermal penetration of cinnamic aldehyde in Bitong cataplasm;Optimum ratio of MCPE was BO-AZ-PG-MT=1.33%:1.90%:6.40%:1.30%. Conclusion: This optimized MCPE could significantly improve transdermal rate constant of Bitong cataplasm
while effects on appearance and initial adhesion was small.