全球三大传统毒品是什么
全球三大传统毒品是可卡因、大麻和海洛因。
大麻最早来源于大麻植物的提取物并因此得名,成分非常复杂,主要包括类脂物、黄酮类化合物、萜烯、碳氢化合物、非环形大苯酚、生物碱,柠檬酸银和环形大麻酚等。
可卡因又称古柯碱,化学名称为苯甲基芽子碱,多呈白色晶体状,无臭,味苦而麻。在医疗中,它被用作局部麻醉药或血管收缩剂。
海洛因,系列吗啡类毒品总称,是以吗啡生物碱作为合成起点得到的半合成毒品,俗称几号、白粉、白面。是阿片毒品系列中的精制品。
扩展资料:
毒品对个人、家庭和社会具有严重的危害。
一,毒品对个人的危害。毒品作用于人体,会使人体产生适应性改变,形成在药物作用下的新的平衡状态,一旦停药,生理功能就会紊乱,出现一系列严重反应,称为戒断反应,使人感到非常痛苦。
二对家庭的危害。吸毒者在自我毁灭的同时也破坏了自己的家庭,使家庭陷入经济破产、亲属离散甚至家破人亡的困境之地。
三,对社会生产力的巨大破坏。吸毒者首先导致身体疾病影响生产,其次造成社会财富的巨大损失和浪费。同时毒品活动还造成环境恶化,缩小人类的生存空间。
参考资料来源:
百度百科-毒品
1,鸦片 又叫阿片,俗称大烟,是罂粟果实中流出的乳液经干燥凝结而成。因产地不同而呈黑色或褐色,味苦。生鸦片经过烧煮和发酵,可制成精制鸦片,吸食时有一种强烈的香甜气味。吸食者初吸时会感到头晕目眩、恶心或头痛,多次吸食就会上瘾。 2,吗啡(Morphine) 是从鸦片中分离出来的一种生物碱,在鸦片中含量10%左右,为无色或白色结晶粉末状,具有镇痛、催眠、止咳、止泻等作用,吸食后会产生欣快感,比鸦片容易成瘾。长期使用会引起精神失常、谵妄和幻想,过量使用会导致呼吸衰竭而死亡。历史上它曾被用做精神药品戒断鸦片,但由于其副作用过大,最终被定为毒品。 3,海洛因(Herion) 化学名称“二乙酰吗啡”,俗称白粉,它是由吗啡和醋酸酐反应而制成的,镇痛作用是吗啡的4—8倍,医学上曾广泛用于麻醉镇痛,但成瘾快,极难戒断。长期使用会破坏人的免疫功能,并导致心、肝、肾等主要脏器的损害。注射吸食还能传播艾滋病等疾病。历史上它曾被用做精神药品戒断吗啡,但由于其副作用过大,最终被定为毒品。海洛因被称为世界毒品之王,是我国目前监控、查禁的最重要的毒品之一。 4,大麻 桑科一年生草本植物,分为有毒大麻和无毒大麻。无毒大麻的茎、杆可制成纤维,籽可榨油。有毒大麻主要指矮小、多分枝的印度大麻。大麻类毒品主要包括大麻烟、大麻脂和大麻油,主要活性成分是四氢大麻酚。大麻对中枢神经系统有抑制、麻醉作用,吸食后产生欣快感,有时会出现幻觉和妄想,长期吸食会引起精神障碍、思维迟钝,并破坏人体的免疫系统。 5,杜冷丁 即盐酸哌替啶,是一种临床应用的合成镇痛药,为白色结晶性粉末,味微苦,无臭,其作用和机理与吗啡相似,但镇静、麻醉作用较小,仅相当于吗啡的1/10—1/8。长期使用会产生依赖性,被列为严格管制的麻醉药品。 6,古柯 古柯是生长在美洲大陆、亚洲东南部及非洲等地的热带灌木,尤为南美洲的传统种植物。古柯树株高1.5—3米,生长周期为30—40年,每年可采摘古柯叶3—4次。古柯叶是提取古柯类毒品的重要物质,曾为古印第安人习惯性咀嚼,并被用于治疗某些慢性病,但很快其毒害作用就得到科学证实。从古柯叶中可分离出一种最主要的生物碱——可卡因。 7,可卡因 可卡因是从古柯叶中提取的一种白色晶状的生物碱,是强效的中枢神经兴奋剂和局部麻醉剂。能阻断人体神经传导,产生局部麻醉作用,并可通过加强人体内化学物质的活性刺激大脑皮层,兴奋中枢神经,表现出情绪高涨、好动、健谈,有时还有攻击倾向,具有很强的成瘾性。 此外,传统毒品还有可待因、那可汀、盐酸二氢埃托啡等。
远古时代人们为了生存从生活经验中得知某些天然物质可以治疗疾病与伤痛,这是药物的源始。这些实践经验有不少流传至今,例如饮酒止痛、大黄导泻、楝实祛虫、柳皮退热等。以后在宗教迷信与邪恶斗争及封建君王寻求享乐与长寿中药物也有所发展。
但更多的是将民间医药实践经验的累积和流传集成本草,这在我国及埃及、希腊、印度等均有记载,例如在公元一世纪前后我国的《神农本草经》及埃及的《埃伯斯医药籍》(Ebers‘Papyrus)等。明朝李时珍的《本草纲目》(1596)在药物发展史上有巨大贡献,是我国传统医学的经典著作,全书共52卷,约190万字,收载药物1892种,插图1160帧,药方11000余条,是现今研究中药的必读书籍,在国际上有七种文字译本流传。
在西欧文艺复兴时期(十四世纪开始)后,人们的思维开始摆脱宗教束缚,认为事各有因,只要客观观察都可以认识。瑞士医生Paracelsus(1493-1541)批判了古希腊医生Galen恶液质唯心学说,结束了医学史上1500余年的黑暗时代。后来英国解剖学家W.Harvey(1578-1657)发现了血液循环,开创了实验药理学新纪元。
意大利生理学家F.Fontana(1720-1805)通过动物实验对千余种药物进行了毒性测试,得出了天然药物都有其活性成分,选择作用于机体某个部位而引起典型反应的客观结论。这一结论以后为德国化学家F.W.Serturner(1783-1841)首先从罂粟中分离提纯吗啡所证实。18世纪后期英国工业革命开始,不仅促进了工业生产也带动了自然科学的发展。
其中有机化学的发展为药理学提供了物质基础,从植物药中不断提纯其活性成分,得到纯度较高的药物,如依米丁、奎宁、士的宁、可卡因等。以后还开始了人工合成新药,如德国微生物学家P.Ehrlich从近千种有机砷化合物中筛选出治疗梅毒有效的新胂凡纳明(914)。药理学作为独立的学科应从德国R.Buchheim(1820-1879)算起,他建立了第一个药理实验室,写出第一本药理教科书,也是世界上第一位药理学教授。
其学生O.Schmiedeberg(1838-1921)继续发展了实验药理学,开始研究药物的作用部位,被称为器官药理学。受体原是英国生理学家J.N.Langley(1852-1925)提出的药物作用学说,现已被证实是许多特异性药物作用的关键机制此后药理学得到飞跃发展,第二次世界大战结束后出现了许多前所未有的药理新领域及新药,如抗生素、抗癌药、抗精神病药、抗高血压药、抗组胺药、抗肾上腺素药等。近年来药动学的发展使临床用药从单凭经验发展为科学计算,并促进了生物药学的发展。
1853年夏尔,弗雷德里克·热拉尔(Gerhardt)就用水杨酸与乙酸酐合成了乙酰水杨酸,(乙酰化的水杨酸)但没能引起人们的重视。
1897年德国化学家费利克斯·霍夫曼又进行了合成,并为他父亲治疗风湿关节炎,疗效极好。在1897年,费利克斯·霍夫曼的确第一次合成了构成阿司匹林的主要物质。
1898年上市,发现它还具有抗血小板凝聚的作用,于是重新引起了人们极大的兴趣。将阿司匹林及其他水杨酸衍生物与聚乙烯醇、醋酸纤维素等含羟基聚合物进行熔融酯化,使其高分子化,所得产物的抗炎性和解热止痛性比游离的阿司匹林更为长效。
扩展资料:
阿司匹林性状:白色针状或板状结晶或结晶性粉末。无臭,微带酸味。分子相对质量:180.16,CAS号:50-78-2,熔点:136-140℃,沸点:321.4°Cat760mmHg。
闪点:131.1°C,水溶性:3.3g/L(20℃),蒸汽压:0.000124mmHgat25°C,溶解性:微溶于水,溶于乙醇、乙醚、氯仿,也溶于较强的碱性溶液,同时分解。
参考资料来源:百度百科-阿司匹林
经统计,注册可卡因的商标达33542件。
注册时怎样选择其他小项类:
1.选择注册(维生素制剂,群组号:0501)类别的商标有101件,注册占比率达0.3%
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3.选择注册(疫苗,群组号:0501)类别的商标有87件,注册占比率达0.26%
4.选择注册(毒药,群组号:0501)类别的商标有86件,注册占比率达0.26%
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介绍可卡因的英文段子
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Cocaine (benzoylmethyl ecgonine) is a crystalline tropane alkaloid that is obtained from the leaves of the coca plant. The name comes from "coca" in addition to the alkaloid suffix -ine, forming cocaine. It is both a stimulant of the central nervous system and an appetite suppressant. Specifically, it is a dopamine reuptake inhibitor, a noradrenaline reuptake inhibitor and a serotonin reuptake inhibitor. Because of the way it affects the mesolimbic reward pathway, cocaine is addictive. Nevertheless, cocaine is used in medicine as a topical anesthetic, even in children, specifically in eye, nose and throat surgery.
Its possession, cultivation, and distribution are illegal for non-medicinal and non-government sanctioned purposes in virtually all parts of the world. Although its free commercialization is illegal and has been severely penalized in virtually all countries, its use worldwide remains widespread in many social, cultural, and personal settings.
Cocaine in its purest form is a white, pearly product. Cocaine appearing in powder form is a salt, typically cocaine hydrochloride (CAS 53-21-4). Street market cocaine is frequently adulterated or “cut” with various powdery fillers to increase its weightthe substances most commonly used in this process are baking sodasugars, such as lactose, dextrose, inositol, and mannitoland local anesthetics, such as lidocaine or benzocaine, which mimic or add to cocaine's numbing effect on mucous membranes. Cocaine may also be "cut" with other stimulants such as methamphetamine.[20] Adulterated cocaine is often a white, off-white or pinkish powder.
The color of “crack” cocaine depends upon several factors including the origin of the cocaine used, the method of preparation – with ammonia or baking soda – and the presence of impurities, but will generally range from white to a yellowish cream to a light brown. Its texture will also depend on the adulterants, origin and processing of the powdered cocaine, and the method of converting the base. It ranges from a crumbly texture, sometimes extremely oily, to a hard, almost crystalline nature.
By 1999, Colombia had become the world's leading producer of cocaine, and has remained the leader past 2005. Due to Colombia's 1994 legalization of small amounts of cocaine for personal use, while sale of cocaine was still prohibited, the result was the spread of local coca crops, partly justified by the local demand.
Three-quarters of the world's annual yield of cocaine has been produced in Colombia, both from cocaine base imported from Peru (primarily the Huallaga Valley) and Bolivia, and from locally grown coca. There was a 28% increase from the amount of potentially harvestable coca plants which were grown in Colombia in 1998 . This, combined with crop reductions in Bolivia and Peru, made Colombia the nation with the largest area of coca under cultivation after the mid-1990s. Coca grown for traditional purposes by indigenous communities, a use which is still present and is permitted by Colombian laws, only makes up a small fragment of total coca production, most of which is used for the illegal drug trade.
Attempts to eradicate coca fields through the use of defoliants have devastated part of the farming economy in some coca growing regions of Colombia, and strains appear to have been developed that are more resistant or immune to their use. Whether these strains are natural mutations or the product of human tampering is unclear. These strains have also shown to be more potent than those previously grown, increasing profits for the drug cartels responsible for the exporting of cocaine. Although production fell temporarily, coca crops rebounded as numerous smaller fields in Colombia, rather than the larger plantations.
The cultivation of coca has become an attractive, and in some cases even necessary, economic decision on the part of many growers due to the combination of several factors, including the persistence of worldwide demand, the lack of other employment alternatives, the lower profitability of alternative crops in official crop substitution programs, the eradication-related damages to non-drug farms, and the spread of new strains of the coca plant.