Bead Mill for Pharmaceutical Nanosuspension: Solving the Poorly Soluble Drug Problem. More than 40% of drugs currently on the market — and an even larger share of new drug candidates in development — share the same fundamental problem: they don't dissolve well enough in water for the body to absorb a useful amount. Wet media milling in a bead mill for pharmaceutical nanosuspension production is one of the most established, proven ways pharmaceutical manufacturers solve that