Distronic toxaemia

Distronic Toxaemia was a disorder that quickly caused fatigue before it killed the victim. It could be caused by exposure to Distronic explosives, which were usually used in explosive rockets. Near the end of the Thousand Year War on Skaro, the Thals developed a rocket with a Distronic warhead in order to destroy opposing Kaled Dome. The Thals used an expendable slave labour force, including Sarah Jane Smith and Sevrin to load the dangerous element into the warhead. (DW: Genesis of the Daleks)