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  2. Nicotine poisoning - Wikipedia

    en.wikipedia.org/wiki/Nicotine_poisoning

    The LD 50 of nicotine is 50 mg/kg for rats and 3 mg/kg for mice. 0.5–1.0 mg/kg can be a lethal dosage for adult humans, and 0.1 mg/kg for children. [19] [20] However the widely used human LD 50 estimate of 0.5–1.0 mg/kg was questioned in a 2013 review, in light of several documented cases of humans surviving much higher doses; the 2013 review suggests that the lower limit causing fatal ...

  3. Chewing tobacco - Wikipedia

    en.wikipedia.org/wiki/Chewing_tobacco

    Using chewing tobacco can cause various harmful effects such as dental disease, oral cancer, oesophagus cancer, and pancreas cancer, coronary heart disease, as well as negative reproductive effects including stillbirth, premature birth and low birth weight. [3] [4] Chewing tobacco poses a lower health risk than traditional combusted products. [5]

  4. Alcohol intolerance - Wikipedia

    en.wikipedia.org/wiki/Alcohol_intolerance

    [5] [6] [13] Tobacco use or exposure to secondhand smoke should be avoided, as smoking may increase levels of acetaldehyde. Certain medications may interact with alcohol and worsen symptoms. Antacid or antihistamines are used to reduce the symptoms of alcohol intolerance. However, these medications simply mask these symptoms. [41]

  5. Smokeless tobacco keratosis - Wikipedia

    en.wikipedia.org/wiki/Smokeless_tobacco_keratosis

    Smokeless tobacco keratosis (STK) [4] is a condition which develops on the oral mucosa (the lining of the mouth) in response to smokeless tobacco use. Generally it appears as a white patch, located at the point where the tobacco is held in the mouth. The condition usually disappears once the tobacco habit is stopped.

  6. Nicotine withdrawal - Wikipedia

    en.wikipedia.org/wiki/Nicotine_withdrawal

    Nicotine withdrawal refers to the effects that nicotine-dependent individuals experience after they discontinue or decrease nicotine use. Nicotine is an addictive substance found most commonly in tobacco and tobacco products including cigarettes , cigars , chewing tobacco , e-cigarette liquid , pipe tobacco , snus , snuff , and nicotine ...

  7. Smokeless tobacco - Wikipedia

    en.wikipedia.org/wiki/Smokeless_tobacco

    Smokeless tobacco is a tobacco product that is used by means other than smoking. [1] Their use involves chewing, sniffing, or placing the product between gum and the cheek or lip. [1] Smokeless tobacco products are produced in various forms, such as chewing tobacco, snuff, snus, and dissolvable tobacco products. [2]

  8. Health effects of tobacco - Wikipedia

    en.wikipedia.org/wiki/Health_effects_of_tobacco

    This is an accepted version of this page This is the latest accepted revision, reviewed on 6 February 2025. Circumstances, mechanisms, and factors of tobacco consumption on human health "Health effects of smoking" and "Dangers of smoking" redirect here. For cannabis, see Effects of cannabis. For smoking crack cocaine, see Crack cocaine § Health issues. "Smoking and health" redirects here. For ...

  9. Tobacco - Wikipedia

    en.wikipedia.org/wiki/Tobacco

    They can also be consumed as snuff, chewing tobacco, dipping tobacco, and snus. Tobacco contains the highly addictive stimulant alkaloid nicotine as well as harmala alkaloids. [1] Tobacco use is a cause or risk factor for many deadly diseases, especially those affecting the heart, liver, and lungs [2] as well as many cancers.