August 2026 in “Pakistan Journal of Pharmaceutical Sciences” In rats with cyclophosphamide-induced hair loss, this study found that applying cetirizine HCl-loaded emulgel with microneedling stimulated hair growth, suggesting a potentially safer alternative to minoxidil for treating chemotherapy-induced alopecia.
October 2025 in “Pharmaceutical Development and Technology” In this study, cetirizine hydrochloride was formulated into niosomal and cubosomal gels, showing potential for off-label use in treating androgenic alopecia due to effective skin permeation and acceptable safety profiles; cubosomal gels exhibited superior permeation compared to niosomal gels.
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.
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August 2023 in “Saudi Pharmaceutical Journal” This study found that cetirizine-loaded niosomal gels demonstrated superior skin deposition and retention compared to plain cetirizine gel, suggesting potential for improved topical management of alopecia.
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January 2019 in “Journal of feline medicine and surgery open reports” This case report describes the first known occurrence of urticaria pigmentosa in a domestic shorthair cat, where oral dexamethasone and cetirizine hydrochloride offered effective management following a comprehensive diagnostic work-up.