Preparation and In Vitro Permeability Study of Dihydroartemisinin Ointment / 中国中医药信息杂志

Objective To optimize the formulation of Dihydroartemisinin ointment and study its characteristics of penetration enhancers.Method A method of transdermal experiment in vitro was established for DHA.The penetration rate in vitro was examined by HPLC,and coincided the DHA cumulative permeation curve with the Higuchi equation.Result The penetration rate of DHA from DHA ointment made up of water-soluble carbopol and Azone was the highest in all formulations,up to 27.262 ?g/(h?cm2).The cumulative permeation curve which coincided with the Higuchi equation was better.Conclusion The formulation which made up of water-soluble carbopol and Azone was optimized.