Diamorphine is a powerful opioid medication derived from morphine. It is primarily used for pain relief, especially in severe cases such as post-surgery or cancer-related pain. Due to its potency, it is often administered in a controlled medical setting. In some countries, diamorphine is also used in the treatment of heroin addiction, as it can help manage withdrawal symptoms. However, its use is highly regulated due to the risk of addiction and potential side effects, including respiratory depression and sedation.