Thixotropic sprays: Popular with patients, challenging for developers
Analysis of particle size and morphology provides essential information for formulators developing
Confirming particle size and ensuring that suspended drug particles are evenly dispersed within a
thixotropic solution creates a number of challenges. This article will discuss the issues that formulators have to address when creating a thixotrophic suspension and the types of analyses that are available to determine the extent to which the nasal spray has been optimized.