Nanoparticulate compositions of poorly soluble compounds

Abstract

The present invention relates to a method for the production of a nanoparticulate pharmaceutical composition. The method comprises the steps of a) suspending in water a poorly soluble active ingredient without the presence of a detergent, b) mechanically treating said suspension to obtain particles comprising the active ingredient with an effective average size of less than about 5000 nm, c) contacting said active ingredient or suspension with a first polyelectrolyte during and/or before mechanically treating, d) optionally contacting said suspension with a one or more second or further polyelectrolytes during, before and/or after mechanically treating, e) optionally drying said suspension. The invention also pertains to the pharmaceutical compositions obtained by the method of the invention.

Dependencies are inferred from the claim text.