This video provides information on Prussian Blue. Prussian Blue is a pill that can help remove radioactive cesium and thallium from inside the body. It is only available by prescription, and should be taken under supervision of your doctor or a designated health professional. Other videos focused on pharmaceutical countermeasures for radiation emergencies can be found here: http://emergency.cdc.gov/radiation/protectiveactions.asp Comments on this video are allowed in accordance with our comment policy: http://www.cdc.gov/SocialMedia/Tools/CommentPolicy.html This video can also be viewed at http://www.cdc.gov/wcms/videos/low-res/NCEH/2015/prussian_blue_922301.mp4