Table 1.

Alkaloid content by % weight of opium in Papaver setigerum and Papaver somniferum.

	Papaver subspecies
Alkaloid	Setigerum*	Somniferum+ %
Morphine	2.3%	7.65–25.15
Codeine	2.6%	1.21–6.37
Thebaine	Detected but not quantified	0.97–6.38
Papaverine	4.7%	0.51–5.33
Noscapine	10.2%	4.03–15.22

^*as determined by electrophoresis (Panicker et al., 2007),

⁺as determined by HPLC (Krenn et al., 1998).