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E-Cigarettes
URL of this page: https://medlineplus.gov/ecigarettes.html

E-Cigarettes

Also called: E-Cigs, Electronic Cigarettes, Personal Vaporizer

Summary

E-cigarettes, or electronic cigarettes, are battery-operated smoking devices. They often look like cigarettes, but work differently. Using an e-cigarette is called vaping. The user puffs on the mouthpiece of a cartridge. This causes a vaporizer to heat the liquid inside the cartridge. The liquid contains nicotine, flavorings, and other chemicals. The heated liquid turns into the vapor that is inhaled.

Some people think that e-cigarettes are safer than cigarettes, and that they can be used to help people quit smoking. But not much is known about the health risks of using them, or whether they do help people quit smoking. However we do know about some dangers of e-cigarettes:

  • They contain nicotine, which is addictive
  • They contain other potentially harmful chemicals
  • There is a link between e-cigarette use and tobacco cigarette use in teens
  • The liquid in e-cigarettes can cause nicotine poisoning if someone drinks, sniffs, or touches it

NIH: National Institute on Drug Abuse

Learn More

  • E-cigarettes and E-hookahs (Medical Encyclopedia) Also in Spanish
  • E-Cigarettes and Pregnancy (Centers for Disease Control and Prevention)
  • How to Properly Store E-Liquids and Prevent Accidental Exposure of E-Liquids to Children (Food and Drug Administration) Also in Spanish
  • Quit Vaping and Dip From the National Institutes of Health (National Cancer Institute, Tobacco Control Research Branch)
  • Risks of Vaping: A Look at Safety From the National Institutes of Health (National Institutes of Health) Also in Spanish
  • Secondhand Smoke and Electronic-Cigarette Aerosols (Environmental Protection Agency)
  • Vaping Devices (Electronic Cigarettes) DrugFacts From the National Institutes of Health (National Institute on Drug Abuse) Also in Spanish
  • Vaping: What Parents Should Know (Nemours Foundation) Also in Spanish

Clinical Trials

  • ClinicalTrials.gov: Electronic Nicotine Delivery Systems From the National Institutes of Health (National Institutes of Health)

Journal Articles References and abstracts from MEDLINE/PubMed (National Library of Medicine)

  • Article: Nicotine e-cigarettes for smoking cessation following discharge from smoke-free inpatient alcohol...
  • Article: Smoking cessation for people accessing homeless support centres (SCeTCH): comparing the...
  • Article: Randomized clinical studies assessing the pharmacokinetics and subjective effects of vuse...
  • E-Cigarettes -- see more articles

Topic Image

E-Cigarettes

National Institutes of Health

The primary NIH organization for research on E-Cigarettes is the National Institute on Drug Abuse

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The information on this site should not be used as a substitute for professional medical care or advice. Contact a health care provider if you have questions about your health.

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Last updated September 18, 2023
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