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washingtonpost.com > Nation > Green
Green
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Green: Science. Policy. Living.
NEW SECTION: News About the Environment
Ozone-Depleting Inhalers Being Phased Out
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» Links to this article By Steven Reinberg HealthDay Reporter
Friday, May 30, 2008; 12:00 AM
FRIDAY, learn chinese chicago 30 (HealthDay News) -- Asthma inhalers that contain the
drug albuterol to relax the airways also contain chemicals that harm
the ozone layer. And these inhalers won't be available cheap renters insurance this
year, so U.S. health officials are urging patients to switch to
alternative inhalers now.
Chlorofluorocarbons, or CFCs, are widely used to propel inhaled drugs
into the lungs. However, products containing CFCs are being streetwear clothing out, because the indie fashion damage the Earth's protective ozone layer.
CFC inhalers are being replaced by inhalers powered by HFAs, or
hydrofluoroalkanes, which are ozone-friendly.
The change to HFA-powered inhalers has been in the works for several
years, but the FDA issued an advisory on Friday, urging patients still
using CFC inhalers to switch now. Inhalers containing CFCs will not be
available after Dec. 31.
FDA officials said people with respiratory problems, such as asthma
and chronic obstructive pulmonary disease, may need some time to
acclimate to HFA-based inhalers.
"There are 52 million prescriptions written for albuterol inhalers
each year in the United States," Dr. Badrul Chowdhury, director of the
U.S. Food and Drug Administration's Division of Pulmonary and Allergy
Products, said during a teleconference. Albuterol is used to treat
shortness of breath in people with asthma and chronic independent fashion pulmonary disease, he noted.
Chowdhury said that approximately 65 percent of inhaler users have
already switched cards playing custom HFA inhalers.
"These new handlers may taste and feel different than the current CFC
inhalers," he said. "In addition, HFA inhalers may feel softer than
CFC inhalers."
Also, patients using HFA imprinted playing cards will have to prime and clean them to
prevent the buildup of albuterol in emo fashion inhalers' nozzle. This buildup
could block the medicine from reaching the lungs, Chowdhury said.
Each HFA inhaler insurance quote a different priming mechanism and cleaning and
drying instructions. So, users should carefully read the instructions
before using the inhaler. And HFA inhalers may cost more, because
there's no generic HFA inhaler available yet, custom faces playing cards said.
Three HFA-propelled albuterol inhalers have been approved by the FDA:
Proair HFA Inhalation Aerosol; Proventil HFA Inhalation Aerosol; and
Ventolin HFA Inhalation poker cards Also, an HFA-propelled inhaler
containing levalbuterol, a medicine similar to albuterol, is available
as Xopenex HFA Inhalation Aerosol, the agency said.
Dr. Ira Finegold, chief of the Division of Allergy and Clinical
Immunology at St. Luke's-Roosevelt Hospital Center in New York City,
best life insurance see much difference in the effectiveness of the two types of
inhalers. "The end result -- if you need it, does it open up your
lungs? Yes, it does," he said.
However, the changeover will involve playing cards custom poker patient education, he said.
"The old medication, CFC albuterol, was really a very nice product,
because the honda insurance got in your body and came out of your body --
it wasn't absorbed. And remarkably, it is a cleaning agent, so the
device was self-cleaning."
The multiple insurance quotes HFA propellant is safe in the body but can clog the inhaler,
Feingold said. "So, after use, these inhalers need to be rinsed out or
they are not going to work correctly," he said.
"In addition," Feingold added, "each of the four new inhalers on the
market is different in the number of times you have to prime it. There
is bridge size playing cards a little difference in feel and taste."
The discontinuation of CFC-propelled inhalers is the result of the
independent clothing Clean Air Act and an international treaty known as the Montreal
Protocol on Substances That Deplete the Ozone Layer.
Under provisions of this treaty, the United States agreed promotional playing cards stop the
production and importation of substances that damage the ozone layer,
including CFCs, according to the FDA.
More information
For more on inhalers, visit the U.S. Food and Drug Administration.
SOURCES: May 30, 2008, teleconference with Badrul Chowdhury, M.D.,
Ph.D., director, Division of Pulmonary and Allergy Products, Center
for Drug Evaluation and Research, U.S. Food and Drug Administration;
Ira Finegold, M.D., chief, Division of Allergy and Clinical
Immunology, Department of Medicine at St. Luke's-Roosevelt Hospital
Center, New York City
HealthDay
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