Another Promising Radiation Cure
The combination of two existing drugs kept 80% of tested mice alive after being exposed to radiation. While many more tests are needed, stockpiling this combo could one day save millions of lives.
Mice exposed to radiation were administered a combination of the antibiotic fluoroquinolone and a synthetic version of the immune system protein BPI. While such radiation exposure would normally prove fatal for mice within thirty days, 80% of those treated with both agents were still alive a month later. Furthermore, the treatment was shown to be effective even if administered 24 hours after exposure.
http://www.thecrimson.com/article/2011/12/5/radiation-sickness-therapy/
Some hardcore survivalists might elect to purchase the products and have their own supply ready – for example this company sells BPI, and antibiotics are probably easier to obtain, although I have no idea about the legal side of things. Before doing so you would need to read the original research documents and make sure you had the exact same ingredients and quantities. It goes without saying that with such an untested remedy, you’d only use it when you were certain you would die otherwise.