Opium production in the Golden Triangle continues at high levels, threatening regional integration". unodc.org . Retrieved April 4, 2016. a b c Yangwen Zheng (2003). "The Social Life of Opium in China, 1483–1999". Modern Asian Studies. 37 (1): 1–39. doi: 10.1017/S0026749X0300101X. S2CID 146582691. For the illegal drug trade, the morphine is extracted from the opium latex, reducing the bulk weight by 88%. It is then converted to heroin which is almost twice as potent, [6] and increases the value by a similar factor. The reduced weight and bulk make it easier to smuggle. Ouchterlony, John (1844). The Chinese war: an account of all the operations of the British forces from the commencement to the Treaty of Nanking. London: Saunders and Otley. Smoking of opium came on the heels of tobacco smoking and may have been encouraged by a brief ban on the smoking of tobacco by the Ming emperor. The prohibition ended in 1644 with the coming of the Qing dynasty, which encouraged smokers to mix in increasing amounts of opium. [1] In 1705, Wang Shizhen wrote, "nowadays, from nobility and gentlemen down to slaves and women, all are addicted to tobacco." Tobacco in that time was frequently mixed with other herbs (this continues with clove cigarettes to the modern day), and opium was one component in the mixture. Tobacco mixed with opium was called madak (or madat) and became popular throughout China and its seafaring trade partners (such as Taiwan, Java, and the Philippines) in the 17th century. [47] In 1712, Engelbert Kaempfer described addiction to madak: "No commodity throughout the Indies is retailed with greater profit by the Batavians than opium, which [its] users cannot do without, nor can they come by it except it be brought by the ships of the Batavians from Bengal and Coromandel." [20]

Letter from Macfarlan Smith". Archived from the original on March 22, 2009 . Retrieved March 21, 2010. Production of thebaine and oripavine". April 20, 2004. Archived from the original on September 5, 2012 . Retrieved May 10, 2007. Opium smoking began as a privilege of the elite and remained a great luxury into the early 19th century. However, by 1861, Wang Tao wrote that opium was used even by rich peasants, and even a small village without a rice store would have a shop where opium was sold. [47] Poppy seeds are a common and flavorsome topping for breads and cakes. One gram of poppy seeds contains up to 33 micrograms of morphine and 14 micrograms of codeine, and the Substance Abuse and Mental Health Services Administration in the United States formerly mandated that all drug screening laboratories use a standard cutoff of 300 nanograms per milliliter in urine samples. A single poppy seed roll (0.76grams of seeds) usually did not produce a positive drug test, but a positive result was observed from eating two rolls. A slice of poppy seed cake containing nearly five grams of seeds per slice produced positive results for 24 hours. Such results are viewed as false positive indications of drug use and were the basis of a legal defense. [116] [117] On November 30, 1998, the standard cutoff was increased to 2000 nanograms (two micrograms) per milliliter. [118] Confirmation by gas chromatography-mass spectrometry will distinguish amongst opium and variants including poppy seeds, heroin, and morphine and codeine pharmaceuticals by measuring the morphine:codeine ratio and looking for the presence of noscapine and acetylcodeine, the latter of which is only found in illicitly produced heroin, and heroin metabolites such as 6-monoacetylmorphine. [119] Harvesting and processing [ edit ] Harvesting opium

Pharmacy product

MacPherson, Duncan (1843). Two years in China. Narrative of the Chinese expedition, from its formation in April, 1840, to the treaty of peace in August, 1842. London, Saunders. a b Kramer John C (1979). "Opium Rampant: Medical Use, Misuse and Abuse in Britain and the West in the 17th and 18th Centuries". British Journal of Addiction. 74 (4): 377–389. doi: 10.1111/j.1360-0443.1979.tb01367.x. PMID 396938. Opioids can reduce the intensity and unpleasant feeling of pain. The unspecific effect of opium to the different opioid receptors produce the generation of various effects such as sedation, euphoria, dysphoria, respiratory depression, constipation, pruritus, nausea, and vomiting. It is reported that the secondary effects tend to be diminished as long-term use tolerance is developed. Some reports have also shown an opioid-driven impairment of the hypothalamic function that can result in a loss of libido, impotence, and infertility. Patients have reported a sensation of stress relief even in presence of pain as well as the presence of sedation, hypoventilation, cough inhibition, prolonged apnea, myosis and respiratory obstruction. 9 Liu HC, Ho HO, Liu RH, Yeh GC, Lin DL: Urinary excretion of morphine and codeine following the administration of single and multiple doses of opium preparations prescribed in Taiwan as "brown mixture". J Anal Toxicol. 2006 May;30(4):225-31. [ Article] Opiates". Homehealth-uk.com. Archived from the original on October 31, 2011 . Retrieved October 7, 2011.

Opium (12 mg) + Atropine sulfate (9.7 mcg) + Attapulgite (300 mg) + Hyoscyamine sulfate (0.0519 mg) + Pectin (71.4 mg) + Scopolamine (3.3 mcg)Nye, Gideon (1873). The morning of my life in China: comprising an outline of the history of foreign intercourse from the last year of the regime of honorable East India Company, 1833, to the imprisonment of the foreign community in 1839. Morimoto, Satoshi; Kazunari Suemori; Jun Moriwaki; Futoshi Taura; Hiroyuki Tanaka; Mariko Aso; Masakazu Tanaka; Hiroshi Suemune; Yasuyuki Shimohigashi; Yukihiro Shoyama; etal. (October 12, 2001). "Morphine Metabolism in the Opium Poppy and Its Possible Physiological Function". Journal of Biological Chemistry. 276 (41): 38179–38184. doi: 10.1074/jbc.M107105200. PMID 11498543. Brzezinski, Matthew. "Re-Engineering the Drug Business". The New York Times Magazine, June 23, 2002