The major alkaloids obtained from Papaver cylindricum Cullen were oripavine, narcotine, thebaine and rhoeadine. Floripavidine, papaverine, salutaridine, armepavine, N-methylasimilobine, scoulerine and cheilanthifoline were obtained as minor alkaloids. There have been no previous reports of alkaloids
Species from the section Miltantha are reviewed in the context of their contained alkaloids. Thebaine was isolated as the major alkaloid from a sample of P. fugax together with narcotine, pronuciferine, alpinigenine, O-ethylalpinigenine, amurensinine, N-methyl-crotonosine, armepavine, isocorydine