A process for preparing a spray-dried product for improving the rate of dissolution of the active ingredient. The process includes mixing a crystalline active ingredient, which has a dissolution rate in unstirred water at 25° C. of greater than 15 minutes at a concentration of 14 ppm of the active ingredient, with a starch derivative, a second carrier material, and optionally, xanthan gum, to form a suspension, dispersion or solution of the active ingredient； homogenizing the mixture at a pressure of at least 4000 psig (2.758×107 Pa)； and spray-drying the homogenized mixture to provide a spray-dried active ingredient that has an increased dissolution rate in water compared to the unencapsulated active ingredient.
