Opium is a narcotic forme from the latex (i.e., sap) released by lacerating (or "scoring") the immature seed pods of opium poppies (Papaver somniferum). It contains up to 10% morphine, an opiate alkaloid, which is most frequently processed chemically to produce heroin for the illegal drug trade. The resin also includes codeine and non-narcotic alkaloids, such as papaverine and noscapine. Meconium historically referred to related, weaker preparations made from other parts of the poppy or different species of poppies. Modern opium production is the culmination of millennia of production, in which the source poppy, methods of extraction and processing, and methods of consumption have become increasingly potent.