1) Withdrawn drug
Found on
https://www.crosswordclues.com/clue/thorotrast
Thorotrast is a suspension containing particles of the radioactive compound thorium dioxide, ThO2, that was used as a radiocontrast agent in medical radiography in the 1930s and 1940s. (Use in some countries, such as the U.S., continued into the 1950s.) Thorium compounds produce excellent images because of thorium`s high opacity to X-rays (it has....
Found on
http://en.wikipedia.org/wiki/Thorotrast
<radiology> Previously used contrast agent, accumulated in RE system, liver, spleen, lymph nodes, thorium emits alpha particles, associated with: hepatobiliary carcinoma, leukaemia, aplastic anaemia, dense liver and spleen, bone within a bone ... (12 Dec 1998) ...
Found on
http://www.encyclo.co.uk/local/20973
No exact match found.
