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. Author manuscript; available in PMC: 2020 Aug 15.
Published in final edited form as: Am Fam Physician. 2019 Aug 15;100(4):227–235.

TABLE 3.

Key Talking Points Regarding e-Cigarettes

What are the health effects of e-cigarettes?
e-Cigarettes typically contain nicotine, which is highly addictive.3
e-Cigarette aerosol, or vapor, contains harmful metals and chemicals but in lower concentrations than conventional cigarette smoke.1,3
In adults, switching completely from traditional cigarettes to e-cigarettes is associated with reduced exposure to non-nicotine toxic chemicals and carcinogens.3
The long-term health effects of e-cigarettes are unknown.3
e-Cigarette liquids can cause nicotine poisoning through ingestion, inhalation, or dermal contact, and ingestion can be fatal.24
Can e-cigarettes help with smoking cessation?
e-Cigarettes may be helpful for smoking cessation if U.S. Food and Drug Administration–approved cessation devices are ineffective.12,37,38
Many adults who use e-cigarettes do not quit smoking and instead continue to use both e-cigarettes and conventional cigarettes (dual use).3,12,37
What is known about e-cigarette use and pregnancy?
Risks of e-cigarettes, including relative risks compared with cigarettes, for maternal and fetal health are unknown.3
Nicotine is a teratogen, independent of tobacco combustion.29
How should e-cigarette use be approached with youth?
e-Cigarette use in youth may lead to transition to combustible tobacco products.31
Teens can become addicted to nicotine and may have difficulty quitting e-cigarettes.34
Secondhand exposure to e-cigarettes may increase the risk of an asthma attack in youth with asthma.36

e-cigarette = electronic cigarette.

Information from references 1, 3, 12, 24, 29, 31, 34, and 36-38.