Study on Stability of Aciclovir Ointment / 中国药房

ABSTRACT

OBJECTIVE:To establish a HPLC assay for determining stability of5%aciclovir ointment.METHODS:A HPLC method was used for the content determination of aciclovir in the ointment.The stablity of aciclovir ointment under humidity,light and heat was studied.RESULTS:The regression equation of aciclovir with the concentration C to the peak heights A∶C=9.310?10 -3 A+0.159,r=0.9999(n=6);the linear confine was0.6～19.2?g/ml;recovery was98.51%;RSD was0.42%.The quality and content showed no significant changes under humidity and light.The labelling amount percentages of aciclovir were98.36%,98.47%and98.26%in the test at40℃,60℃and80℃respectively.CONCLUSION:The HPLC assay is proved to be sensitive,accurate and simple.The ointment preparation has good stability in the test at40℃and under high light.