Medical Developments International Limited manufactures and distributes emergency medical solutions in Australia, Europe, the United States, and internationally. The company operates through Pain Management and Respiratory segments. It offers Penthrox, a trauma and emergency pain relief product for use in hospitals, emergency departments, ambulance services, sport medicines, and for analgesia during short procedures. The company also distributes asthma and chronic obstructive pulmonary disease products, such space chambers, peak flow meters, portable nebulisers, and silicon face mask. The company was founded in 1972 and is headquartered in Scoresby, Australia.