Use of the parenteral route of administration has risen sharply in recent years, with parenteral drugs now representing approximately 32% of the global market. Parenteral drug delivery, via injection or infusion, is essential for many biologics but is also commonly used for small molecules, low solubility drugs and delivery of nutritional and vitamin therapies. Carole Grassi at SGD Pharma demonstrates how aseptic filling of the container is a key step in the manufacturing process, with significant investment involved in safeguarding the quality and cleanliness of the primary packaging.