The present invention relates to the treatment of trauma haemorrhage or trauma haemorrhage-induced organ injury and associated disorders (in particular stoke, burns and brain injury) using the anti-malarial compound artemisinin and its derivatives. The present invention also relates to the treatment of myocardial infarction and coronary heart disease (and associated disorders) using the anti-malarial compound artemisinin and its derivatives. The present invention also relates to the use of artemisinin and its derivatives in coronary artery bypass surgery, heart transplantation, and diseases associated with ischaemia-reperfusion.