Introductionmorphine, principal derivative of opium, which is the juice in the unripe seed pods of the opium poppy, Papaver somniferum. It was first isolated from opium in 1803 by the German pharmacist F. W. A. Sertürner, who named it after Morpheus, the god of dreams. Given intravenously, it is still considered the most effective drug for the relief of pain.
See also drug addiction and drug abuse.
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