Visualization of Epidermal Reservoir Formation from Topical Diclofenac Gels by Raman Spectroscopy.
Qihong ZhangCarol R FlachRichard MendelsohnLeanne PageSusan WhitsonMila Boncheva BettexPublished in: Journal of pain research (2020)
The Raman images evidenced that the studied topical gels deliver diclofenac through the stratum corneum skin barrier and form a drug depot localized in the epidermis. The data are in line with earlier clinical findings that this depot acts like a true reservoir and enables sustained drug release.