Determination of methylparaben, propylparaben, triamcinolone acetonide and its degradation product in a topical cream by RP-HPLC

Abstract

The novel RP-HPLC method for determination of active component triamcinolone acetonide, its degradation product triamcinolone and two preservatives presented in the cream - methylparaben and propylparaben, using hydrocortisone as an internal standard