Towards the Importance of a Roller Mill in Compounding Practice: An Experimental Approach.

There are a substantial amount of suppliers for roller mills in the market, but there is a lack of scientific evidence of a roller mill's capacity to improve particle size reduction/distribution or homogenization. In this concise paper, we evaluate the use a roller mill in the final steps of compounding semisolid dosage forms. We performed three simple tests to verify these claims: 1) particle size evaluation through dynamic light scattering and scanning electron microscopy techniques, 2) content uniformity through high-performance liquid chromatography technique, and 3) cross contamination through a cleaning validation method.