Topic overview

Start with the big picture

Safe extemporaneous compounding involves more than preparing a formulation. The pharmacist must establish the clinical need, use a validated formula, select quality-assured ingredients, and complete and check the required calculations. Compatibility and stability inform the choice of vehicle, storage conditions, packaging, and evidence-based beyond-use date. Good compounding practice also relies on suitable equipment and a clean workspace, appropriate quality-control checks before release, and clear labelling and records. Sterile or high-risk preparations require particular attention to aseptic technique. The broader lesson follows these elements through the compounding process, including how to manage deviations, recalls, and adverse events.