Hafner, Anita Development and in vitro characterization of chitosan-based microspheres for nasal delivery of promethazine. [electronic resource] - Drug development and industrial pharmacy Apr 2007 - 427-36 p. digital Publication Type: Journal Article ISSN: 0363-9045 Standard No.: 10.1080/03639040600920309 doi Subjects--Topical Terms: AdhesivenessAdministration, IntranasalCalorimetry, Differential ScanningCellulose--analogs & derivativesChitosan--chemistryDelayed-Action PreparationsDrug Carriers--chemistryEmulsionsHistamine H1 Antagonists--chemistryMicroscopy, Electron, ScanningMicrospheresOilsParticle SizePhotonsPromethazine--chemistrySpectrum AnalysisTechnology, PharmaceuticalWater