Dit is wat ik snel vond:
Papaver rhoeas does not contain any opium. Papaver rhoeas contains a substance, cleverly named rhoeadine. It's nonpoisonous and has been used as a mild sedative for centuries. The ancient Romans used a concoction of the poppy to ease the pains of love, I guess if you are sleeping you can't worry about love.
[/quote]Unlike the related opium poppy (P. somniferum) it is non-addictive. However, the plant does contain alkaloids, which are narcotic and slightly sedative