drug and yonth
The most dangerous and addictive narcotic is heroin. While receiving less publicity today than newer, more popular drugs, it continues to be a major problem in this country. Not only is heroin extremely addictive and dangerous, but as with cocaine and methamphetamines, addicts often resort to crimes such as burglary, grand theft, robbery, or prostitution to support their habits.
Sometimes called black tar, mud, smack, China white, or Mexican brown, heroin is derived from opium poppies. In its powder form, it may range in color from white to a very dark brown. The most popular form of heroin is a dark tar-like substance called black tar, which is sold in small foil or cellophane packets or in small toy balloons.
The most common use of heroin is by injection (called "mainlining" or "shooting"), but in it's powder form it can be inhaled through the nose or smoked. Paraphernalia for injecting heroin include hypodermic needles, small cotton balls used to strain the drug, and water and spoons or bottle caps used for "cooking" or liquefying the heroin. Paraphernalia for inhaling or smoking heroin includes razor blades, straws, rolled dollar bills, and pipes. The high from the drug usually lasts from four to six hours.
If your child is under the influence of heroin, he or she may have constricted pupils, droopy eyelids, depression, apathy, decreased physical activity, and nausea. A frequent user may nod or appear sleepy, and repeatedly scratch or touch their face and nose. Larger doses of heroin may induce sleep, vomiting, and shallow breathing. An overdose can cause slow and shallow breathing, clammy skin, convulsions, coma, or death.
In addition, there is a family of chemically manufactured drugs often referred to as "designer drugs". These drugs have been falsely represented as "synthetic heroin." The most prevalent of these "designer drugs" is fentanyl citrate, also called China white, which is many times more powerful than heroin and has caused a number of deaths among addicts. Fentanyl citrate is used in the same manner as heroin.
參考答案:毒品和青年
最危险最上瘾的毒品就是海洛因了。如今贩毒比以前更隐蔽更流行，仍然成为我国的首要问题。海洛因不仅仅危险易于上瘾，而且同可卡因和大麻一样，会引发其他违法犯罪，比如入室行窃，偷窃，抢劫，卖淫等。
海洛因是从罂粟中提取出来的，又称为黑海洛因，黑泥，白粉，中国白，墨西哥棕等。它有从白色到深棕褐色的多种形式。最常见的就是黑海洛因，一般用小锡纸片，小透明袋或者小玩具汽球包装贩卖。
海洛因通常是注射于体内（称为静脉注射或打针）。粉末状态的话可以用鼻子吸入或抽它。注射海洛因的常用工具有注射用针，消毒棉球，水和用于加热溶化海洛因的勺子或瓶盖。吸抽海洛因的工具通常有剃须刀片，烟草，卷纸和吸管。兴奋状态通常能持续4-6小时。
如果你的孩子吸海洛因的话，他或她会瞳孔收缩，眼皮下垂显得无精打采，意志消沉，冷漠，不爱动，甚至恶心呕吐。大剂量的服用海洛因会引起嗜睡，呕吐，呼吸急促。过量服用可引起呼吸困难，出虚汗，抽搐，昏迷甚至死亡。
另外，用化学方法同样可以人为制造毒品，称之为“人造毒品”，并不是所谓的“合成海洛因”。最常见的“人造毒品”是枸橼酸芬太尼，又称中国白，比海洛因威力更强，导致大量吸食者死亡。枸橼酸芬太尼的吸食方法和海洛因相同。
