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Kinetic Monitoring of in vitro Release Testing Using UV-Vis Spectrophotometry with Hydrocortisone Creams
Kelsey Leach1, Lola Sibaud1, Bradley Towey1
1Chemistry and Biochemistry, Minnesota State University Moorhead, Moorhead, Minnesota, USA.
Skin Pharmacology and Physiology
|July 2, 2025
Summary
A new UV-Vis spectrophotometry method for in vitro release testing (IVRT) of hydrocortisone formulations is validated. This rapid IVRT method offers a reliable alternative for semisolid drug release analysis.
Area of Science:
- Pharmaceutical Sciences
- Analytical Chemistry
Background:
- A novel in vitro release testing (IVRT) method was developed using UV-Vis spectrophotometry, adapting Higuchi's square root approximation for hydrocortisone formulations.
- The method was evaluated against abbreviated new drug applications (ANDAs) and USP General Chapter <1724> standards for key validation elements.

