Nicotine

nicotine addictionnicotine sulfateaddicted to nicotinenicotinoidaddictive natureaddictivenesscigarettesCommithighly addictiveNick o' Teen
Nicotine is a potent parasympathomimetic stimulant and an alkaloid found in the nightshade family of plants.wikipedia
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Tobacco

snufftobacco leavestobacco dryers
Nicotine is found in the leaves of Nicotiana rustica, in amounts of 2–14%; in the tobacco plant, Nicotiana tabacum; in Duboisia hopwoodii; and in Asclepias syriaca.
Tobacco contains the alkaloid nicotine, which is a stimulant, and harmala alkaloids.

Alkaloid

alkaloidspurine alkaloidalkaloid biosynthesis
Nicotine is a potent parasympathomimetic stimulant and an alkaloid found in the nightshade family of plants.
Other alkaloids possess psychotropic (e.g. psilocin) and stimulant activities (e.g. cocaine, caffeine, nicotine, theobromine), and have been used in entheogenic rituals or as recreational drugs.

Neonicotinoid

neonicotinoidsban on neonicotinoidsnicotinoid
It functions as an antiherbivore chemical; consequently, nicotine was widely used as an insecticide in the past, and neonicotinoids, such as imidacloprid, are widely used.
Neonicotinoids (sometimes shortened to neonics ) are a class of neuro-active insecticides chemically similar to nicotine.

Nicotiana rustica

makhorkamapachoTobacco
Nicotine is found in the leaves of Nicotiana rustica, in amounts of 2–14%; in the tobacco plant, Nicotiana tabacum; in Duboisia hopwoodii; and in Asclepias syriaca.
The high concentration of nicotine in its leaves makes it useful for producing pesticides.

Insecticide

insecticidesinsecticidalsystemic
It functions as an antiherbivore chemical; consequently, nicotine was widely used as an insecticide in the past, and neonicotinoids, such as imidacloprid, are widely used.
1. Natural insecticides, such as nicotine, pyrethrum and neem extracts, made by plants as defenses against insects.

Smoking cessation

quit smokingquitting smokingtobacco cessation
Nicotine use as a tool for quitting smoking has a good safety history.
Tobacco smoke contains nicotine, which is addictive.

Nicotine poisoning

acute nicotine toxicityTobacco intoxication
The median lethal dose of nicotine in humans is unknown, but high doses are known to cause nicotine poisoning.
Nicotine poisoning describes the symptoms of the toxic effects of nicotine following ingestion, inhalation, or skin contact.

Smoking

smokersmokesmokers
The primary therapeutic use of nicotine is in treating nicotine dependence in order to eliminate smoking with the damage it does to health.
In the case of cigarette smoking these substances are contained in a mixture of aerosol particles and gasses and include the pharmacologically active alkaloid nicotine; the vaporization creates heated aerosol and gas into a form that allows inhalation and deep penetration into the lungs where absorption into the bloodstream of the active substances occurs.

Eggplant

auberginebrinjalaubergines
Usually consistent concentrations of nicotine varying from 2–7 µg/kg (20–70 millionths of a percent wet weight) are found in the edible family Solanaceae, such as potatoes, tomatoes, and eggplant.
Botanically classified as a berry, the fruit contains numerous small, soft, edible seeds that taste bitter because they contain or are covered in nicotinoid alkaloids, like the related tobacco.

Nicotinic acetylcholine receptor

nicotinic acetylcholine receptorsnicotinicnicotinic receptors
Nicotine acts as an exogenous receptor agonist at most nicotinic acetylcholine receptors (nAChRs), except at two nicotinic receptor subunits (nAChRα9 and nAChRα10) where it acts as a receptor antagonist.
Nicotinic receptors also respond to drugs, including the nicotinic receptor agonist nicotine.

Nicotine gum

nicotine chewing gumchewing gumgum
Controlled levels of nicotine are given to patients through gums, dermal patches, lozenges, electronic/substitute cigarettes or nasal sprays in an effort to wean them off their dependence.
Nicotine gum is a type of chewing gum that delivers nicotine to the body.

Cigarette

cigarettessmokingfag
An average cigarette yields about 2 mg of absorbed nicotine, while high amounts (30–60 mg) can be harmful. Other recreational nicotine products include chewing tobacco, cigars, cigarettes, e-cigarettes, snuff, pipe tobacco, and snus.
Most cigarettes contain a "reconstituted tobacco" product known as "sheet", which consists of "recycled [tobacco] stems, stalks, scraps, collected dust, and floor sweepings", to which are added glue, chemicals and fillers; the product is then sprayed with nicotine that was extracted from the tobacco scraps, and shaped into curls.

Plant defense against herbivory

defense against herbivoresdefense against herbivoryfeeding deterrent
It functions as an antiherbivore chemical; consequently, nicotine was widely used as an insecticide in the past, and neonicotinoids, such as imidacloprid, are widely used.
Over 3000 known alkaloids exist, examples include nicotine, caffeine, morphine, cocaine, colchicine, ergolines, strychnine, and quinine.

Recreational drug use

recreational drugdrug usedrugs
Nicotine is used as a recreational drug.
Recreational drugs include alcohol (as found in beer, wine, and distilled spirits); cannabis (legal federally in certain countries and statewide/province-wide in others) and hashish; nicotine (tobacco); caffeine (coffee, tea, and soft drinks); prescription drugs; and the controlled substances listed as illegal drugs in the Single Convention on Narcotic Drugs (1961) and the Convention on Psychotropic Substances (1971) of the United Nations.

Addiction

drug addictiondrug addictdrug addicts
Nicotine is highly addictive.
Examples of drug and behavioral addictions include alcoholism, marijuana addiction, amphetamine addiction, cocaine addiction, nicotine addiction, opioid addiction, food addiction, gambling addiction, and sexual addiction.

Electronic cigarette

e-cigarettee-cigarettesvaping
Other recreational nicotine products include chewing tobacco, cigars, cigarettes, e-cigarettes, snuff, pipe tobacco, and snus.
Using e-cigarettes is commonly referred to as vaping. The liquid in the e-cigarette, called e-liquid, or e-juice, is usually made of nicotine, propylene glycol, glycerine, and flavorings.

Parasympathomimetic drug

parasympathomimeticcholinomimeticparasympathomimetics
Nicotine is a potent parasympathomimetic stimulant and an alkaloid found in the nightshade family of plants.
Nicotine

Snuff (tobacco)

snuffdry snufftobacco
Other recreational nicotine products include chewing tobacco, cigars, cigarettes, e-cigarettes, snuff, pipe tobacco, and snus.
It is inhaled or "snuffed" into the nasal cavity, delivering a swift hit of nicotine and a lasting flavoured scent (especially if flavouring has been blended with the tobacco).

Nicotine patch

nicotine patchespatchesadhesive patch
Controlled levels of nicotine are given to patients through gums, dermal patches, lozenges, electronic/substitute cigarettes or nasal sprays in an effort to wean them off their dependence.
A nicotine patch is a transdermal patch that releases nicotine into the body through the skin.

Chewing tobacco

tobaccochewingchewed tobacco
Other recreational nicotine products include chewing tobacco, cigars, cigarettes, e-cigarettes, snuff, pipe tobacco, and snus.
Unlike dipping tobacco, it is not ground and must be manually crushed with the teeth to release flavour and nicotine.

Snus

swedish snufftraditional Swedish snuffTre Ankare
Other recreational nicotine products include chewing tobacco, cigars, cigarettes, e-cigarettes, snuff, pipe tobacco, and snus.
Snus usually contains nicotine, which is highly addictive.

Insomnia

sleeplessnesstrouble sleepingdifficulty sleeping
Conditions that can result in insomnia include psychological stress, chronic pain, heart failure, hyperthyroidism, heartburn, restless leg syndrome, menopause, certain medications, and drugs such as caffeine, nicotine, and alcohol.

Cigar

cigarscigar makerCuban cigars
Other recreational nicotine products include chewing tobacco, cigars, cigarettes, e-cigarettes, snuff, pipe tobacco, and snus.
In time, Spanish and other European sailors adopted the practice of smoking rolls of leaves, as did the Conquistadors, and smoking primitive cigars spread to Spain and Portugal and eventually France, most probably through Jean Nicot, the French ambassador to Portugal, who gave his name to nicotine.

Solanaceae

nightshadenightshade familysolanaceous
Nicotine is a potent parasympathomimetic stimulant and an alkaloid found in the nightshade family of plants. Usually consistent concentrations of nicotine varying from 2–7 µg/kg (20–70 millionths of a percent wet weight) are found in the edible family Solanaceae, such as potatoes, tomatoes, and eggplant.
Many species contain a variety of alkaloids that can be more or less active or poisonous, such as scopolamine, atropine, hyoscyamine, and nicotine.

Duboisia hopwoodii

Nicotine is found in the leaves of Nicotiana rustica, in amounts of 2–14%; in the tobacco plant, Nicotiana tabacum; in Duboisia hopwoodii; and in Asclepias syriaca.
D. hopwoodii plants from this region are high in nicotine and low in the much more toxic drug nornicotine, whereas those found in some other parts of Australia can have very high levels of nornicotine and are sometimes used to contaminate water holes and stun animals to help in hunting.