Top 10 Most Dangerous Drugs and their Effects

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Drug abuse is a very common problem nowadays. All over the world thousands of people are dying every day because of drug addiction. These days’ people take drugs either out of curiosity or out of peer pressure. But little do they realize that in doing so they are just taking a step forward to their own destruction. Drug addiction is a dangerous thing and isn’t easy to cure. Drugs have both physical as well as psychological effects. And the effects could be both short term and long terms. So, here is a list of Top 10 Most Dangerous Drugs and their Effects:

 10. Marijuana

Marijuana also known as cannabis is a preparation of the cannabis plant. It consists of dried flowers and subtending leaves and stems of the female cannabis plant. The main psychoactive ingredient of cannabis is tetrahydrocannabinol. It is mostly used as a recreational drug but prolonged uses can be harmful.


1. Short term effects include- panic, anxiety, sensory distortion, increased heart beat and heart attack risk, dry mouth etc.

2. Long term effects include- apathy, inability to understood things clearly, growth disorders, reduction of male sex hormones, study difficulties, mood changes, destruction of lung fibers, etc.

09. Tobacco

Tobacco is reason for deaths of millions of people around the globe. It is a genus Nicotina of the nightshade family. There are more than 70 species of tobacco the chief commercial crop being N.tabacum. Tobacco use reduces not only life expectancy but the quality of life.


1. Affects youth activities and athletic performance.

2. Narrows blood vessels.

3. Leads to lack of oxygen and shortness of breath.

4. Causes lungs, liver, colon, lip, stomach, bladder, and other cancers.

5. Causes macular degeneration, cataract, and optic nerve damage.

08. Ecstasy

Ecstasy or MDMA is a synthetic, psychoactive drug. It is one of the most extensively used recreational drugs in the world. Ecstasy is usually sold on the street as tablets. Ecstasy pills come in all sorts of colors and some of them have designs or logos stamped into them. In 1953 it was used by the US Army in psychological warfare tests and it wasn’t until 1970s that ecstasy started being used as a party drug. Clubbers took ecstasy to feel energized, happy, to stay awake and to dance for hours.


1. Short term effects include- paranoia, depression, anxiety, sleep problems, false sense of affection, nausea, drug cravings, impaired judgement etc.

2. Long term effects include- kidney failure, hemorrhaging, memory loss, depression, brain damage, degenerated nerve branches and nerve endings, death etc.

07. PCP

PCP or Phencyclidine is a dissociative drug formerly used as an anesthetic agent, exhibiting hallucinogenic and neurotoxic effects. It is popularly known as angel dust, supergrass, killer weed, embalming fluid, ashy larry, shermans tank, rocket fuel etc. It is available in both powder and liquid form and is typically available by sprayed on the leafy materials like mint, marijuana, oregano, or Ginger leaves. PCP can be an oil, liquid, powder, crystal or pill. PCP oil is yellow, pure PCP powder and crystals can range from white to light brown.


1. Hallucinations.

2. Affects the nervous system.

3. Its psychological effects include euphoria, hallucinations, paranoia, suicidal impulses and aggressive attitude.

4. It might make you feel really happy and upbeat but can also cause you to feel very down, panicky and paranoid.

5. Psychosis.

06. Benzodiazepines

Benzodiazepine is a psychoactive drug and is also known as Valium and Xanax. It is used to treat depression but it becomes fatal when used in excess. This drug is usually abused. Benzodiazepines have also been used as a “date rape” drug because they can markedly impair and even abolish functions that normally allow a person to resist or even want to resist sexual aggression or assault.


1. Short term effects include- confusion, depression, vertigo, tremors, impaired memory, slurred speech, respiratory problems, nausea, loss of appetite etc.

2. Long term effects include- muscle weakness, disorientation, cognitive impairment, diarrhea, fatigue, etc.

05. Psilocybin Mushrooms

Psilocybin Mushrooms, popularly known as magic mushrooms and shrooms, are fungi that contain the psychedelic substances psilocybin and psilocin, and occasionally other psychoactive tryptamines. In modern western society, they are used for recreational purposes. The intoxicating effects of psilocybin mushrooms last anywhere from 3 to 7 hours. The experience is typically inwardly oriented, with strong visual and auditory components.


1. Psilocybin mushrooms can distort colors, sounds and objects.

2. Can also speed up and slow down your sense of time and movement.

3. Psilocybin mushrooms can make you feel disoriented, tired or sick and can give you stomach pains or diarrhea.

04. Methamphetamine

Methamphetamine, shortened to meth or ice is a neurotoxin and potent psychostimulant. As soon as it enters the brain and it triggers an overflow release of serotonin, dopamine and norepinephrine, stimulating the mesolimbic pathway in the brain it causes a state of excitement and euphoria. Users may become obsessed or perform repetitive tasks such as cleaning, hand-washing, or assembling and disassembling objects. It comes in different forms such as tablets or in powder or crystal form.


1. Short term effects include-nausea, loss of appetite, dilated pupils, erratic behavior, psychosis, etc.

2. Long term effects include- breathing problems, malnutrition, infectious diseases, severe tooth decay, damage to blood vessels, lung damage, kidney failure, stroke, epilepsy etc.

03. LSD

Lysergic acid diethylamide is also known as lysergide and informally acid, is a psychedelic drug. LSD is one of the most potent, mood-changing chemicals. It is mainly used as an entheogan and recreational drug. It is odorless, colorless, and has a slightly bitter taste. LSD is sold on the street in small tablets or “microdots”, capsules or gelatin squares or “window panes”. LSD users call an LSD experience a “trip,” typically lasting about 12 hours or so.


1. Physical effects include- dry mouth, loss of appetite, tremors, dilated pupils, fluctuation in body temperature etc.

2. Mental effects include- depression, anxiety, delusions, hallucinations, artificial sense of euphoria, impaired depth and time perception etc.

02. Cocaine

Cocaine is a tropane alkaloid that is derived from the leaves of the coca plants. Friedrich Gaedcke, the German chemist, was the first person to isolate the cocaine alkaloid in 1855.

Popularly known as snow, blow, coke, cocaine is a slow killer and perhaps is one of the most addictive drugs in the world. Cocaine usually is fine white powder in form and tastes bitter. This drug influences a number of neurotransmitters at the same time and is extremely dangerous to the nervous functioning of the brain. Crack cocaine, another form of cocaine, is made by processing by processing cocaine with baking soda and water.


1. Short term effects include- nausea, loss of appetite, hallucinations, bizarre and violent behavior, increased rate of breathing, trouble sleeping, raise in body temperature, depression, seizures, palpitation, convulsions, paranoia, sudden deaths etc.,

2. Short term effects include- kidney, liver and lung damage, weight loss, damaging of nose tissues when sniffed, permanent damage to blood vessels of heart and brain, respiratory failure when smoked, delirium, infertility, mood disturbances, etc.

01. Heroin


The queen of all drugs, heroin- the most dangerous of all drugs, is a drug made from morphine, which is extracted from the opium poppy. Popularly known as junk, smack, H, skag and others is a derivative of opium. The name was derived from the Greek word “heros”. Though the heroin itself is an inactive drug but when it enters it gets converted into morphine. The tolerance to this drug develops so fast that the body demands more and more intake of this drug. Originally, this drug was created to treat people having morphine addiction but is now the most widely abused drug in the world. Pure heroin is a white powder, but street heroin can be anything from brownish white to brown.


1. The first dose of heroin can cause dizziness and vomiting.

2. Side effects include shortness of breath, seizures, disorientation, abnormal behavior, cycles of knock outs and even the whole brain stops functioning at times leading to sudden death.

3. Injecting heroin and sharing injecting equipment might cause HIV or hepatitis C.

4. Other effects include- cold sweats, depression, loss of memory, weakening of the immune system, insomnia, reduced sexual capacity, and many other problems.


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