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Mass murder and marvellous medicine

Arsenic is a naturally occurring element with a chequered past. From treating ulcers to bumping off rivals, David Jesudason charts how the chemical has been used to cure and kill for centuries.

Words by David Jesudason

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About the author

Photograph of David Jesudason

David Jesudason

David Jesudason is a freelance journalist who covers race issues for BBC Culture, Pellicle and Vittles. David also writes ‘Episodes of My Life’, a weekly newsletter about the TV shows and films that changed his life.