50 Fun Facts About Nicotine

Nicotine is an alkaloid found mainly in which group of plants?

Trace amounts also occur in tomatoes, potatoes and eggplants, which are all nightshades.

Roughly what share of a tobacco leaf's dry weight is nicotine?

Nicotiana rustica is far stronger than common tobacco, reaching 2-14%.

What colour is pure nicotine?

It is an oily liquid that readily passes through biological membranes.

What is nicotine's biological job in the tobacco plant?

It is made in the roots and shipped up to the leaves; a tomato top grafted onto tobacco roots is unharmed by it.

Which specialist caterpillar has evolved to feed on Nicotiana plants despite the nicotine?

Manduca sexta can detoxify and even repurpose the alkaloid.

About how much nicotine does an average cigarette deliver to the smoker?

That dose is enough to reinforce dependence while staying far below toxic levels.

Nicotine works by activating which type of receptor?

The receptor was actually named after nicotine, because the drug was used to characterise it.

How quickly does inhaled nicotine reach the brain?

That speed is a big part of why smoking is so much more addictive than a patch.

What is the elimination half-life of nicotine in the body?

Its main metabolite hangs around for 18-20 hours, which is why tests look for that instead.

Which nicotine metabolite, with a half-life of 18-20 hours, is used to test for tobacco exposure?

Menthol slows the conversion of nicotine to this metabolite, lengthening nicotine's half-life.

Which liver enzyme does most of the work of metabolising nicotine?

CYP2B6 and FMO3 also contribute.

Nicotine's shift from stimulant to sedative as the dose rises is known as what?

The doctor who first described the effect did so in 1969.

Which nicotinic receptor subtype has nicotine's highest binding affinity and mediates its addictiveness?

At the α9 and α10 subunits nicotine is actually an antagonist, which produces mild pain relief.

Nicotine's release of which neurotransmitter in the mesolimbic pathway drives its reinforcing effect?

The reinforcing effect usually happens without euphoria, though some users feel a mild high.

Which of nicotine's two mirror-image forms is the far more potent one found in tobacco?

It is 4-28 times more potent than its mirror image in receptor assays.

Is nicotine itself classified as a carcinogen by the International Agency for Research on Cancer?

It can, however, form carcinogenic tobacco-specific nitrosamines during curing and processing.

Nicotine withdrawal symptoms typically peak within what period?

They can persist for several weeks, but unlike some drugs there is no six-month withdrawal state.

A 2018 Cochrane review found nicotine replacement therapy raises the chance of quitting by how much?

Combining a patch with a faster-acting form such as gum or spray improves the odds further.

In what decade were nicotine replacement products first approved in the United States?

They are now on the World Health Organization's List of Essential Medicines.

Nicotine gum is commonly sold in which two strengths?

Smokers who light up within 30 minutes of waking are steered to the stronger one.

The first human study of a transdermal nicotine patch was published in what year?

Jed Rose, Murray Jarvik and Daniel Rose wrote it; a follow-up showed the patch cut cigarette cravings.

Nicotine gum is contraindicated for people with disease of which part of the body?

Nasal-spray users with chronic nasal disorders also need extra care.

The quit-smoking drug varenicline was developed from analogues of which plant alkaloid?

Cytisus plants were smoked as a tobacco substitute during World War II, leading to their use as a cessation aid in eastern Europe.

Under what brand name is varenicline sold in the United States?

It is a partial agonist at nicotinic receptors, so it takes the edge off cravings without nicotine's full kick.

Nicotine is named after Nicotiana tabacum, which in turn honours a French ambassador to which country?

Jean Nicot sent tobacco and seeds to Paris in 1560 and promoted them as medicine.

Besides tobacco, Jean Nicot is remembered for compiling one of the first of what?

His Thresor de la langue françoyse was published in 1606, two years after his death.

Smoking tobacco was believed in 16th-century Europe to protect against which disease in particular?

Spanish explorers had brought the "holy herb" to Europe by the early 1530s.

Which two German chemists first isolated nicotine from tobacco in 1828?

They believed the substance was a poison; its structure was worked out in 1893.

In what year was nicotine first synthesised in a laboratory?

Amé Pictet and A. Rotschy did it, though lab synthesis stayed too expensive to compete with tobacco extraction for a century.

Whose introduction of tobacco in 1612 rescued Jamestown, Virginia from economic collapse?

By 1619 the colony was shipping more than 20,000 pounds of tobacco.

Nicotine sulfate was sold as a US home insecticide from 1915 to 1992 under what trade name?

Nicotine insecticides have been banned in the US since 2014 and in the EU since 2009.

Nicotine has been used as an insecticide since at least what year?

After World War II more than 2,500 tons of nicotine insecticide a year were used worldwide.

Neonicotinoid insecticides were developed in the 1980s by Bayer and which other company?

Bayer patented imidacloprid, the first commercial neonicotinoid, in 1985.

In 2018 the EU banned the three main neonicotinoids for outdoor use mainly to protect what?

A 2018 EFSA review found most uses posed a risk to wild bees and honeybees.

Green tobacco sickness, which strikes farm workers, is nicotine poisoning caused by what?

It hits young, inexperienced harvesters hardest, especially those working at dawn in the dew.

US cases of green tobacco sickness were first reported in 1970 in which state, as "cropper sickness"?

Wet gloves and wet clothing are the main risk factors, so employers are told to supply spares.

A 2013 review put the real lower limit of a lethal adult nicotine dose at about how much?

That works out to about 6.5-13 mg per kilogram of body weight taken orally.

Death from severe nicotine poisoning is believed to result from what?

An early warning sign is rapid breathing, followed by a slowing heart and falling blood pressure.

What share of US poison-centre calls about traditional cigarettes (2010-14) involved children under six?

Vomiting was the reported effect in 80% of those calls.

Who applied for the earliest e-cigarette patent, a "smokeless non-tobacco cigarette", in 1963?

His device made flavoured steam without nicotine and was never commercialised.

Chinese pharmacist Hon Lik, credited with the modern e-cigarette, patented his design in what year?

He quit smoking after his father, also a heavy smoker, died of lung cancer.

How are the "salts" used in pod-style vapes made?

The protonated form gives a smoother hit and lets pod devices deliver higher doses.

Unlike most oral tobacco, Swedish snus is not fermented but is instead what?

The process leaves lower levels of TSNA carcinogens than fermented products.

Where does a snus user typically place the pouch or pinch?

Around 12% of Sweden's population, about 1.1 million people, use snus.

Which brand held more than 70% of the global nicotine pouch market by 2023?

Global pouch sales jumped from 292 million units in 2018 to 20.1 billion in 2023, mostly in the US.

The FDA's 2025 proposal to cap cigarette nicotine at 0.7 mg per gram is a cut of roughly what?

The goal is to make combusted tobacco minimally or non-addictive.

Which EU member state sets the minimum age for buying nicotine products at 20 rather than 18?

The US federal minimum age for tobacco products is 21.

Which superhero fought the anti-smoking cartoon villain Nick O'Teen in 1980s PSAs?

The character was created for Britain's Health Education Council.

Which snake venom component blocks nicotinic receptors so tightly it causes paralysis?

The receptor has two binding sites for these venom neurotoxins.

How many people worldwide were estimated to use tobacco products in 2024?

The WHO put the 2024 figure at about 1.2 billion. Nicotine dependence can develop within days of starting to use it.