Top 10 Deadliest Poisons In The World

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Updated on 30 Mar, 2018 at 1:53 pm

The word “poison” is informally used to describe any harmful substance that exaggerates the danger. Even in small quantity, poison can be deadly or harmful to living cells. Go through this list and explore your knowledge about poisonous and toxic products, chemicals and gases in the world.

1. Brazilian Wandering Spider Venom

One of the deadliest poisons in the world, produced by the Brazilian Wandering Spider (Banana Spiders). It was introduced in Guinness Book of Records in 2007 for killing most number of people. It contains potentially fatal Neurotoxin, which causes loss of muscle control as well as respiratory problems, resulting in paralysis and eventually in death. It also causes Priapism, an erection that won’t go away and might actually cause impotence.



2. Sarin

Also known as GB, Sarin is a colorless gas which is 25 times more fatal than cyanide. Scared? Developed by German scientists in 1938 as a pesticide, it has been used as a chemical weapon in wars of mass destruction including the famous Iran-Iraq war of 1988 and terrorists attack in Japan in 1995. Exposure of Sarin invades the breathing function by “switching off” glands and muscles. This fatal chemical was named in honor of its inventors – Schrader, Ambros, Rudiger and Van der LINde.



3. Fiddleback Spider Venom

The deadly poison of this spider also deserves respect in this list. Also known as violin spider or brown recluse spider, its bite can destroy your red blood cells. On record, it has severely affected either small children or people with the weak immune system. Other causes include skin cancer, Lyme disease and skin lesions (if bitten in fatty tissue), releasing small microemboli and non-physiologic products into the bloodstream.



4. Amatoxin

Found in poisonous mushrooms, this chemical compound is heat-stable, insoluble in water and can’t be destroyed by drying. The liver is the first organ which gets affected after consuming this toxic compound. Gradually, it encroaches kidney and the central nervous system and causes respiratory distress as well as bloody diarrhea and even coma. The way only to avoid this poisoning is to avoid eating wild mushrooms.




5. Strychnine

Discovered by the French chemists Joseph-Bienaime Caventou and Pierre-Joseph Pelletier in 1818, this poison is obtained from the seeds of nux vomica tree and related plants of the genus Strychnos. It causes increased reflex excitability in the spinal cord that results in a loss of the normal inhibition of spread of motor cell stimulation so that all muscles contract simultaneously. It is one of the most bitter substance known.


6. Beaked sea snake venom

Drop for drop and one of the deadliest, this widespread species is responsible for nine out of every ten deaths from sea-snake bites. It is one of the larger kinds of sea snake; males are about 1.2 meters long and females about 1.5 or more. Early symptoms include a headache, thick-feeling tongue, thirst, sweating, and vomiting. Symptoms that can occur after 30 minutes to several hours post-bite include generalized aching, stiffness, and tenderness of muscles all over the body.



7. Potassium Cyanide

What makes potassium cyanide so notorious is the speed that it acts. Just get a full teaspoon and dissolve it into the water. 10-20 seconds is enough to take your breath away after consuming this solution. Cyanide blocks one of the enzymes involved in the electron transfer chain, this ceases cellular respiration thus you essentially die from suffocation, very painful. You would pass out fairly rapidly then die as your heart muscle has no energy to beat.



8. Dart Frog Poison

Perhaps, they are the most beautiful of all the rainforest creatures but their beauty contains extraordinary toxicity. There are at least 100 different toxins identified that deadliest dart frogs hide in their skin containing a neurotoxin, batrachotoxin, and its derivatives. It produces a toxin, batrachotoxin which enters the bloodstream and then attacks the nerves, especially around the heart, breathing becomes impossible and stressed asphyxiation then leads to cardiac arrest during coma, then death.



9. Ricin

Deadliest No. 2. Ricin is a potent toxin that is used as a weapon of mass destruction (WMD). Ricin is found naturally in castor beans if castor beans are chewed and swallowed, the released ricin can be fatal. Ricin works by getting inside the cells of a person’s body and preventing the cells from making the proteins they need. Without the proteins, cells die. Eventually, this is harmful to the whole body, and death may occur.



10. Botulinum

Well, here comes the deadliest No. 1 poison of this toxic list. Commonly used in various cosmetic products, it is so powerful that it has been estimated that 1 teaspoon of the poison has the potential to kill 1.2 billion people. The classic symptoms of botulism include double vision, blurred vision, drooping eyelids, slurred speech, difficulty swallowing, dry mouth, and muscle weakness. When the diaphragm and chest muscles are exposed to this compound, respiration is inhibited and unless the patient receives treatment in time, death from asphyxia results.