Drugs can be found anywhere in the world. Many people of our society are addicted to drugs. It's a dark side of our world. A lot of people use drugs for recreational use. There are many addictive drugs available. For instance, Narcotic is a very popular drug, which is a strong pain killer and also gives a psychological relief. Every year there's an increase in addictive drug users and this is a grave matter of concern. These kinds of addictive drugs give a feeling of excitement and euphoria for a certain period but actually ruin the health to the extreme. Many dangerous drugs are available in the market. Given below is the list of five most dangerous drugs to use.

    Starting in reverse order…

    Ketamine C: A powerful hallucinogen – referred as Special K. This drug causes a lost of sense and identity. The effect can last for two hours maximum. But the drug can still affect the body for up to 24 hours. This drug is a powder, usually snorted, but is sometimes sprinkled on tobacco and marijuana and smoked. Special K is frequently used with other drugs like Marijuana and Heroin.

    Street Methadone: Methadone can work as a pain killer. A powerful medication, it is a part of a group of drugs called Opioids. It is available in tablets and also as injectable liquid. Overdosing of Methadone is very dangerous. Methadone does not produce the euphoric rush like other drugs. So people who are addicted by Heroin or OxyContin often take large quantities of Methadone duo to the unavailability of those particular drugs. This is extremely dangerous. Methadone overdoses are associated with severe respiratory depression, decrease in heart rate and blood pressure, coma, and death.

    Cocaine : Cocaine is a highly powerful drug of abuse. It gives a feeling of supremacy. The various ways of taking Cocaine are snorting, injecting and smoking. It appears that compulsive cocaine use may prove to be more dangerous if the substance is smoked rather than snorted. Smoking allows extremely high doses of Cocaine to reach the brain very quickly and results in an intense and immediate high. Cocaine often refers as Snow, Flake, Coke and Blow. Physical effects of Cocaine use include constricted peripheral blood vessels, dilated pupils, and increased body temperature, heart rate, and blood pressure. Some cocaine users report feelings of restlessness, irritability, and anxiety, both while using and between periods of use. High doses of Cocaine can cause paranoia. Combination of Cocaine and Alcohol is deadly. It creates a third substance called Cocaethylene, which intensifies the effect and can cause sudden death.

    LSD （Lysergic Acid Diethylamide） : LSD is a semisynthetic psychedelic drug, which is very addictive and dangerous. This is a odourless, colourless drug that tastes slightly bitter. Often LSD is added to absorbent paper and divided into small decorative squares – with each square representing one dose. LSD users experience vast array of hallucinations, which can be very dangerous. Usually effects of the drug start after 30 to 90 minutes from taking. The physical effects include dilated pupils, higher body temperature, increased heart rate and blood pressure, sweating, loss of appetite, sleeplessness, dry mouth, and tremors.

    Heroin: Heroin is the most dangerous drug available. It is derived directly from Opium poppy. Heroin usually appears as a white or brown powder. Many users take Heroin for intense euphoric effects. It is a strong pain killer. It is taken by snorting and injecting. Street names associated with Heroin are Smack, 'H', Skag and Junk. Heroin abuse is extremely dangerous for the health. Long-term effects of heroin include collapsed veins, infection of the heart lining and valves, abscesses, cellulitis, and liver disease. Pulmonary complications, including various types of pneumonia, may result from the poor health condition of the abuser, as well as from heroin's depressing effects on respiration.

    We need a drug free world. Every year hundreds of people die because of using dangerous drugs. This article is written to aware people of these dangerous drugs and their killing effects. There are many more dangerous and extremely harmful drugs available in our society and we need to guard ourselves against those harmful substances. Drug is not a solution for any problem. Say No to drug and Yes to Life.

    藥品隨處可得。社會上許多人對藥成癮，世界因此變得陰暗。許多人把藥當成毒品使用（recreational use 并非字面上的娛樂用途，即指毒品使用）.許多使人成癮的藥品隨處可得。比如，麻醉藥就是一種很流行的藥品，具有很強的止痛能力，帶給人心理上的放松，每年對藥成癮的人數都在增加，這不得不引起人們的重視。這類成癮藥品帶給人一時興奮，飄飄欲仙的感覺，其實會對身體造成極大的傷害。市場上有許多危險的藥品，數以下五種最危險。

    從弱到強順序…

    克他命C:一種強力的致幻劑，一般叫做K仔。這種藥品會使人失去感覺和辨認能力。其藥效持續的最長時間為兩個小時。但藥效還能影響身體達二十四小時之久。此藥為粉末狀，一般以鼻吸的方式服用，但有時候可加在煙草和大麻里吸食。K仔通常跟其他藥品，比如大麻和海洛因同時吸食。

    美沙酮："美沙酮可做止痛藥使用。是一種強效藥，是鴉片類藥品的一種，以藥片和注射型液體的形式出現。過量服用美沙酮非常危險。美沙酮跟其他藥品不同不會給人突然的快感。所以那些對海洛因和奧斯康定上癮的人常服用大量美沙酮因為這類特別的藥品不易到手，這是相當危險的，過量的美沙酮會嚴重抑制呼吸，降低心率，血壓，導致昏厥甚至死亡。

    可卡因：可卡因是一種濫用的強效藥品。能帶給人至高無上的快感。可卡因的使用方式多種，鼻吸，注射，吸食。結果表明強制性可卡因吸食比起鼻吸要更危險。吸食的方式會讓大劑量的高濃度可卡因迅速到達大腦。可卡因也叫Snow（顏色）, Flake（外型）, Coke （取其音和其意，可口）and Blow（黑話）.可卡因的身體影響包括限制外圍血管，瞳孔擴大，體溫上升，心跳加快，血壓升高。還有些可卡因使用者在使用時和使用過程中會有不知疲倦感，興奮，焦躁。高劑量可卡因能導致幻想癥。可卡因和酒精一起混合足以致命因為會產生第三種物質古柯乙堿，這會加強藥效并導致猝死。

    LSD（麥角酸酰二乙胺）:LSD是一種半合成致幻劑藥品，極易上癮，極端危險。這是一種無色，無味，微帶苦味的藥。LSD一般放在吸水紙上分成漂亮的方塊形--每一個方塊表示一份。LSD使用者會感覺到多種幻覺，非常危險。一般來說其藥效在服用后30到90分鐘起作用。藥物的身體影響有瞳孔放大，體溫上升，心跳加快，血壓升高，出汗，失去胃口，無睡意，口干，顫抖。

    海洛因：海洛因是五毒之首。它是從罌粟提煉出來的。海洛因的外觀通常為白色或褐色粉末。許多使用海洛因者會產生極端的欣快感。海洛因是一種強效止痛藥。其服用方式為鼻吸和注射。俗名叫Smack（取迷幻之意）,"H"（首字母）,Skag（香煙頭，即指海洛因）,Junk.海洛因對身體的傷害極為嚴重，其長期影響包括，收縮血管，影響心臟血管和心瓣膜，潰瘍，蜂窩組織炎，導致肝病。肺部并發癥，包括因為濫用者健康狀況惡化患上各種類型的肺炎，和呼吸道疾病。

    我們需要一個無毒害的世界。每年由于使用危險藥品而導致數百人喪命。這篇文章旨讓大家了解這些危險的藥品和他們致命的藥效。社會上還有許多更危險，有害的藥品。我們須潔身自好遠離有害物質。藥并非包治百病。拒絕毒品，尊重生命。

    備注：文中drug（英文藥，毒品都用此詞，本文初衷還是強調先是藥品才是毒品，而中國也常有毒，藥乃一家的說法）.另外筆者曾翻譯過國家地理頻道的一部關于世界上最危險的毒品的DVD,其稱五毒之首為Methamphetamine（甲級安非他命，脫氧麻黃堿）俗稱冰毒，之所以列為五毒之首因為它極易到手，甚至可以從某些感冒藥中提取，價格便宜，服用后會有迷幻的感覺，二戰中日本最先使用用以麻醉那些日本兵。即使在冰天雪地中也不覺得冷。