|Dispersions, i.e. solids
in liquid, are used when
flowability of solids is desired. This type of
formulation permit high concentration of active drug.
A key problem in dispersions is crystal size
growth. By reduction of surface energy between
crystal and continuous phase (often water), the
probability of crystal growth is decreased.
An image showing a dispersion can be found
at the page Image analysis / Microscopy.
|Drug crystal length in presence of different
types of surfactants. Nonionic surfactants
are shown in detail below
|Product Development||EminTech Start Page|