Medical Developments International Limited is a company that produces and sells pharmaceuticals, medical devices and veterinary products. The company offers products such as inhalers, masks and peak flow meters for asthma management. They also provide a prescription only medicine for pain in trauma called Penthrox, and various medical devices such as CPR face shield key rings and finger pulse oximeters. The company operates through three segments: Pharmaceuticals, Medical Devices, and Veterinary Products.