One of its primary uses is in the homogenization and emulsification of pharmaceutical formulations. Ultrasonic energy can break down particles and droplets to the nano or micro-scale, resulting in stable emulsions and uniform dispersions of active pharmaceutical ingredients (APIs). This is particularly important for improving the bioavailability of poorly soluble drugs. Additionally, ultrasonics is used in cell disruption to extract intracellular compounds or proteins, making it a valuable tool in both drug discovery and biotechnology-based drug manufacturing.

Another important application of ultrasonics in the pharmaceutical industry is in cleaning and sterilization. Ultrasonic cleaners are widely used to remove contaminants from pharmaceutical equipment, glassware, and instruments without the need for harsh chemicals. This method ensures high levels of hygiene and reduces the risk of cross-contamination.