We support the use of nanotechnology to develop innovative drugs and vaccines that address the unmet medical needs of people and animals.


Nanotechnology involves the use of materials that are <100 nanometers in size. It includes common substances that have been reduced in size, as well as unique, minute substances such as carbon nanotubes and other exotic materials. Our public policy statement above explains our approach to using nanotechnology responsibly.

The testing required for all drugs ensures that nano-based pharmaceuticals are safe and effective for patient use. Our safety and health professionals closely monitor developments in this area. Based on current knowledge of nanoparticles, our existing methods of assessing risks and applying controls are well-suited to minimizing the risks of exposure to employees and the environment. We do not currently use engineered nanoparticles.

Here are two examples of how we use nanotechnology to improve health:

Human Health: The manufacturing process for EMEND® (aprepitant) uses a nanoscale milling approach to generate very small granules (with some in the “nano” range) that are more easily absorbed by the digestive tract.

Animal Health: Nanoscale milling is used for the active ingredient in PANACUR® (fenbendazole) to produce a formulation that makes the product easier to administer and provides for improved dosing.