“Integrated Quality by Design (QbD) Approaches to Nasal Spray Characterization: Regulatory Compliance, Analytical Methodologies, and Bioequivalence Evaluation for Suspension and Solution Products: Running Title: Nasal Spray Testing and FDA Regulatory Compliance”. 2025. World Journal of Multidisciplinary Studies 2 (10): 27-30. https://wasrpublication.com/index.php/wjms/article/view/321.