research Compatibility of Cetirizine Hydrochloride, Dutasteride, Hydrocortisone Acetate, Nicotinamide, Progesterone, and Pyridoxine Hydrochloride in TrichoSolTM, A Natural Vehicle for Hair Solutions.
In this study, researchers assessed the physical-chemical and microbiological stability of various pharmaceutical ingredients in the vehicle TrichoSolTM, finding differing beyond-use dates for the compounds, such as 180 days for cetirizine hydrochloride, but only 90 days for progesterone at higher concentrations.