Summary: Painkiller with pivotal historic role. Keywords: Papaver somniferum, opium poppy, Hong Kong, diarrhea, narcotic, addiction, trade, China, Britain, Opium Wars, endorphins, enkephalins, medicinal plants
Summary: Painkiller with pivotal historic role. Keywords: Papaver somniferum, opium poppy, Hong Kong, diarrhea, narcotic, addiction, trade, China, Britain, Opium Wars, endorphins, enkephalins, medicinal plants