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Nicotine: Facts and Effects

📑 10 slides 👁 31 views 📅 1/27/2026
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Introduction to Nicotine

Nicotine is a stimulant found in tobacco plants.

Introduction to Nicotine
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The Look of Nicotine

  • Pure nicotine is a colorless to pale yellow oily liquid.
  • In cigarettes, it appears as brownish tobacco leaves or white paper.
  • Vaping liquids can be clear or colored, often with a syrupy consistency.
The Look of Nicotine
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Nicotine History & Facts

  • First isolated in 1828 by German chemists Posselt & Reimann.
  • Tobacco use dates back to 1st century BC in the Americas.
  • Global tobacco industry worth over $800 billion annually.
Nicotine History & Facts
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More Nicotine Facts

  • 60 mg of pure nicotine can kill an adult (1 cigarette contains about 1 mg).
  • Second-hand smoke causes 1.2 million deaths yearly worldwide.
  • Nicotine reaches the brain within 10 seconds of inhalation.
More Nicotine Facts
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Drug Category

  • Primary classification: Stimulant (speeds up nervous system).
  • Also acts as a sedative in higher doses (paradoxical effect).
  • Stimulants increase alertness, heart rate, and blood pressure.
Drug Category
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Nicotine Origin

  • Derived from tobacco plants (Nicotiana tabacum).
  • Native to the Americas, now grown worldwide.
  • Most commercial tobacco comes from China, India, and Brazil.
Nicotine Origin
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Medical Uses

  • Historically used for pain relief and ritual purposes.
  • Modern nicotine replacement therapy (patches, gum) for quitting.
  • Studied for potential benefits in Parkinson's and Alzheimer's.
Medical Uses
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Addictiveness & Tolerance

  • Highly addictive - alters brain chemistry within days.
  • Tolerance develops quickly, requiring more for same effect.
  • Addiction involves both physical dependence and habitual behavior.
Addictiveness & Tolerance
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Methods of Use

  • Most commonly smoked in cigarettes, cigars, or pipes.
  • Increasingly popular in vaping devices and e-cigarettes.
  • Also absorbed through gums (chewing tobacco) or skin (patches).
Methods of Use
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Harmful Effects & Conclusion

  • Short-term: Increased heart rate, blood pressure, dizziness.
  • Long-term: Heart disease, lung damage, cancer risks.
  • Quitting improves health at any age - many support options exist.
Harmful Effects & Conclusion
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