Arsenic: from drug to poison to drug again

This post appeared originally on 23 May 2007 at the ScienceBlogs home of Terra Sigillata. The 2 May issue of the Journal of the National Cancer Institute has an interesting news article on the advancing use of arsenic trioxide against a variety of human malignanices, mostly cancers of the blood. The medical uses of arsenic reach back more than 2,000 years, but only recently has Western medicine embraced its surprising rise from folk...

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