Navigation Links
Ear Wax Softener Can Affect Hearing, Study Reports
Date:2/1/2008

In animal study, Cerumenex also caused damage to eardrum and inner ear,,

FRIDAY, Feb. 1 (HealthDay News) - An over-the-counter ear wax softener may cause inflammation and damage to the eardrum and inner ear, and harm hearing in the process, report Canadian researchers who made the discovery in an animal study.

The researchers looked at the effect of a softener called Cerumenex on hearing and the ear cells in chinchillas, a standard model for this type of research.

The product is no longer sold in the United States, according to a spokesman for its manufacturer, Purdue Pharma LP.

"Purdue discontinued U.S. distribution of this product in 2002," James Heins said. But, he added, the product is still marketed in Canada and Europe.

In the study, published recently in The Laryngoscope, a team led by Dr. Sam Daniel, director of the McGill University Auditory Sciences Lab at The Montreal Children's Hospital, inserted tympanostomy tubes in one of the ears of five chinchillas.

These tubes are often used in children with middle ear infections, to keep fluid from accumulating behind the ear drum. The chinchilla has a hearing mechanism similar to humans, Daniel explained in a prepared statement.

His team assessed hearing in both ears of all the animals and then introduced the wax softener, which is dropped into the ear canal, into the ears with the tubes.

In four of five ears with tubes, the researchers noticed swelling, crusting and fluid accumulation. One animal developed facial paralysis on the side treated with the softener.

The ears without the tubes served as the controls. When the team evaluated the animals' hearing, they found a reduction in hearing in the treated ears, as well as damage to the treated ears' nerve cells. Some of the effects occurred after just one of the four doses had been given.

Daniel and his colleague recommended caution in using the wax softener if the status of a person's eardrum is not known.

Randy Steffan, a spokesman for Purdue Pharma in Canada, said that the company is aware of the study and plans to follow up with the Montreal Children's Hospital researchers to review the full results.

Meanwhile, he said, "the package insert clearly specifies not to use Cerumenex if there is perforated eardrum, middle ear infection, atopic dermatitis or inflammation of the external ear or a previous skin reaction." Cerumenex has been available in Canada since 1958, he added.

Instead of using a wax softener, those with a wax problem who do not have a perforated drum may be advised by their doctor to flush the ears with warm water using an ear bulb. They could then use an eye dropper to apply a few drops of a solution of 50-50 alcohol and white vinegar, said Dr. Chester Griffiths, an ear, nose and throat specialist at Santa Monica-UCLA Medical Center and Orthopaedic Hospital, Santa Monica, CA.

However, people with a hole in their eardrum should not do that, he added. If someone has a perforated drum, he needs to see an ear doctor if there is excess wax or other problem, Griffiths said.

For others, routinely taking care of the wax problem is advisable, he said.

"The problem with wax is, when people feel it, it's too late. And they use wax softener and it can make it worse," Griffiths added.

More information

There's more on ear wax at the American Academy of Otolaryngology--Head and Neck Surgery.



SOURCES: Chester Griffiths, M.D., ear nose throat specialist, Santa Monica-UCLA Medical Center and Orthopaedic Hospital, Santa Monica, Calif.; Randy Steffan and James Heins, spokesmen, Purdue Pharma Canada and Purdue Pharma LP; Dec. 3, 2008, The Laryngoscope, online


'/>"/>
Copyright©2008 ScoutNews,LLC.
All rights reserved  

Related medicine news :

1. Eczema sufferers test out benefits of water softeners
2. Silymarin does not affect virus activity or ALT levels in
3. Obesity Action Coalition Calls on the State of Mississippi House of Representatives to Withdraw House Bill 282 Discriminating Against Those Affected by Obesity
4. Changes in narcoleptics skin, core body temperatures affect their vigilance and sleepiness
5. Abuse history affects pain regulation in women with irritable bowel syndrome
6. Personality Traits Dont Affect Breast Cancer Risk
7. How do multiple deployments affect soldiers and their families?
8. Sex Hormones Dont Seem to Affect Prostate Cancer Risk
9. CIHR news: U of S scientists find plant gene that affects stress resistance
10. Amalgam Fillings Dont Affect Childrens Brain Development, Says Study in ADA Journal
11. Amalgam fillings dont affect childrens brain development, says study in ADA Journal
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Ear Wax Softener Can Affect Hearing, Study Reports
(Date:5/26/2016)... , ... May 26, 2016 , ... W.S. Badger ... has been honored with a 2016 When Work Works Award for its use of ... of the national When Work Works project administered by the Families and Work Institute ...
(Date:5/26/2016)... , ... May 26, 2016 , ... On Memorial Day, ... women who lost their lives in military battle for the country. The nonprofit ... 2015 to provide more programs that empower independence for disabled military veterans, as well ...
(Date:5/26/2016)... ... May 26, 2016 , ... ... solutions for drugs, biologics, consumer health and global clinical supply services, today announced ... to support the company’s continued investment and strategic growth plans in the Asia ...
(Date:5/26/2016)... ... May 26, 2016 , ... Leadership of ... today announced the organization has earned its ISO 13485 certification, indicating the company’s ... with all rules and policies associated with ISO quality standard 13485. , ...
(Date:5/26/2016)... ... May 26, 2016 , ... ... and chief medical officer of Blue Horizon International (BHI), Brian Mehling, M.D., spoke ... was held during May 5-6, 2016 in Chicago, IL, USA. Dr. Mehling’s presentation ...
Breaking Medicine News(10 mins):
(Date:5/24/2016)... , May 24, 2016  Joe Marziani has joined VMS BioMarketing as senior vice ... officer, today. In his new role, Marziani will lead the company,s business development and ... to improve outcomes. Photo - http://photos.prnewswire.com/prnh/20160523/371089 ... ... ...
(Date:5/24/2016)... May 24, 2016 ... , la première endoprothèse à double ... à l,intervention portant sur les membres inférieurs ... OrbusNeich, entreprise mondiale spécialisée dans la ... la vie, a élargi son portefeuille pour ...
(Date:5/24/2016)... May 24, 2016 Een app ... zodat zij collectief patiënten kunnen behandelen, hun kennis kunnen ... idee achter de nieuwe en revolutionaire MDLinking App, ontwikkeld ... Nederlandse vaatchirurg dr. Hans Flu en oncologisch chirurg dr. ... inmiddels beschikbaar is, wordt op dinsdag 24 mei officieel ...
Breaking Medicine Technology: