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Opium


 

Opium is a narcotic drug which is obtained from the unripe seed pods of the opium poppy (Papaver somniferum L. or the synonym paeoniflorum).

References

  • Fairbank, JK. (1978) The Cambridge History of China: volume 10 part I, Cambridge, CUP
  • Franck Daninos, L'opium légal produit en France, La Recherche, May 2005