http://www.cnn.com/2009/HEALTH/03/13/ecigarettes.smoking/index.html

(CNN) -- At first glance, it looks like the real thing. It's
white, with a brown filter. When the tip glows red, a smoke-like puff
follows. But this is not a typical cigarette -- it's an "e-cig." A
what? An electronic cigarette.

Makers of e-cigs tout their product as the first healthy cigarette,
free of harmful chemicals and tar typically found in tobacco products.
The only ingredient: pure liquid nicotine. "Our product is comparable
to the nicotine patch except people still get the oral fixation, which
they love," explained Elicko Taieb, CEO of Smoking Everywhere, one of
the largest distributors of electronic cigarettes.

But the U.S.
Food and Drug Administration considers e-cigs an unapproved new drug
because of a lack of scientific proof that they're safe or effective.
The FDA is trying to halt importation of e-cigs, but isn't seizing
products already being sold in the United States.

"The FDA has
been detaining and refusing importations since at least last summer of
these so-called 'electronic cigarettes,' " FDA spokesperson Rita
Chappelle told CNN in a written statement. Watch Sanjay Gupta's take on e-cigarette »

Smoking Everywhere is "pretty sure" the product is safe, based on
laboratory testing in Europe, Taieb said. The company declined a CNN
request to review safety reports.

"There are no ingredients in
our e-cigs that can cause cancer. However, it is a pretty new product,
so we are not 100 percent sure of the side effects at this point,"
Taieb said. "But we haven't heard of any negative side effects yet, but
we are pretty sure they are safe."

Electronic cigarettes run on
a battery. A person inhales an e-cig as he or she would a typical
cigarette. When inhaled, the battery warms liquid nicotine stored in a
plastic filter. The combination of heat and liquid creates the vapor or
"smoke" puff when exhaled.

Health experts say the idea of an electronic cigarette is a great alternative to tobacco smoke but more evidence is needed.

"Nicotine is not the thing in tobacco smoke that causes cancer, but
inhaling pure nicotine may be dangerous," said Dr. Steven Schroeder,
physician and smoking cessation expert at the University of
California-San Francisco Medical Center. "We have no clue what the
health effects could be."

Nicotine replacement therapies -- the patch or gum -- are safe and highly successful to help quit smoking.

Tobacco smoke causes nearly 90 percent of lung cancer deaths, according
to the American Cancer Society. "If it is a choice between smoking
tobacco product or a nicotine replacement -- of course, keep taking the
nicotine," Schroeder said. "It is a heck of a lot healthier than
tobacco smoking."

Developers of e-cigs echo the thought. "We
aren't claiming electronic cigarettes help you quit altogether, but I
promise our product won't cause cancer. So no matter what way you look
at it, it's the healthier option," Taieb said.

Smoking
Everywhere sells thousands of electronic cigarettes a day in the United
States, the company said. Most are sold online or in 100 mall kiosks
across the states. The company, which gave samples of e-cigs to
celebrities at this year's Grammy and Oscar awards, said it expects
that "big-name" actors will soon promote the product. U.S. sales are
expected to double in 2009.

Sales of e-cigs have been on the rise in
the United Kingdom, Switzerland, Sweden and Brazil for several years.
The trend prompted the World Health Organization to issue a statement
in 2008 calling for more safety testing. "If the marketers of the
electronic cigarette want to help smokers quit, then they need to
conduct clinical studies and toxicity analyses," the statement said.

The idea that that e-cigs may be a good tobacco smoke alternative in
the future could hold true, the FDA and WHO acknowledged, but proof of
the product's safety must come first.

• Smoking KILLS

  
  

• Every year hundreds of thousands of people
  around the world die from diseases caused by smoking.

  
  

• One
  in two lifetime smokers will die from their habit. Half
  of these deaths will occur in middle age.

  
  

• Tobacco
  smoke also contributes to a number of  cancers.

  
  

• The
  mixture of nicotine and carbon monoxide in each cigarette you smoke temporarily increases
  your heart rate and blood pressure, straining your heart and blood
  vessels.

  
  

• This
  can cause heart attacks and stroke. It slows your blood flow, cutting off
  oxygen to your feet and hands. Some smokers end up having their limbs
  
  amputated.

  
  

• Tar
  coats your lungs like soot in a chimney and causes cancer. A 20-a-day
  smoker breathes in up to a full cup (210 g) of tar in a year.

  
  

• Changing to low-tar cigarettes does not help
  because smokers usually take deeper puffs and hold the smoke in for longer, dragging the
  tar deeper into their lungs.

  
  

• Carbon monoxide robs your muscles, brain and body
  tissue of oxygen, making your whole body and especially your heart  work harder. Over
  time, your airways swell up and let less air into your lungs.

  
  

• Smoking causes disease and is a slow way to die.
  The strain put on your body by smoking often causes years of suffering. Emphysema
  is an illness that slowly rots your lungs. People with emphysema often get bronchitis
  again and again, and suffer lung and heart failure.

  
  

• Lung cancer from smoking  is caused by the
  tar in tobacco smoke. Men who smoke are ten times more likely to die from
  lung cancer than non-smokers.

  
  

• Heart disease and strokes are also more common
  among smokers than non-smokers.

  
  

• Smoking causes fat deposits to narrow and block
  blood vessels which leads to heart attack.

  
  

• Smoking causes around one in five deaths from
  heart disease.

  
  

• In younger people, three out of four deaths from
  heart disease are due to smoking