Chemical Composition
Poppy tea contains two groups of alkaloids: phenanthrenes (including morphine and codeine) and benzylisoquinolines (including papaverine). Of these, morphine is the most prevalent comprising 8%-14% of the total. Its effects derive from the fact that it binds to and activates mu opioid receptors in the brain, spinal cord, stomach and intestine.
Dried Papaver somniferum capsules and stems will, if harvested and dried by the usual protocol, contain significantly lower quantities of thebaine than opium made from latex as well as somewhat more codeine. When ingested, thebaine causes nausea, vomiting, and myoclonus. Thebaine is an important precursor for manufacture of pharmaceuticals, and is more concentrated in the roots of Papaver somniferum than elsewhere. Other species of poppies, numbering in the hundreds, do not contain morphine or codeine in useful amounts, but may contain non-narcotic alkaloids like protopine, sanguinarine or berberine.
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