Health - Common painkillers can lead to hearing loss

Loud music or noise isn't the onlything that can damage your hearing.
A new study in men hints that popping over-the-counter painkillers
regularly can also lead to hearing loss, especially in younger men.
In the study, researchers found that men younger than age 50 who
regularly took acetaminophen more than two times a week had roughly
doublethe risk of hearing loss comparedto men who did not take
acetaminophen regularly. Acetaminophen is the active ingredient in
Tylenol and certain other pain relievers.
The researchers also found that men younger than age 50 who regularly
took ibuprofen (the main ingredient in Advil) or othernon-steroidal
anti-inflammatory drugs (NSAID) at least twice a week had a nearly
two-thirds higher risk of hearing loss than men who took NSAIDs less
often. Men who took aspirin twice a week had a one-third higher risk.
So should middle-aged men empty the medicine cabinet of these pain
relievers? Not necessarily, because each individual's actual, or
absolute, risk of hearing loss with these medicines is likely fairly
small.
The overall absolute risk of hearing loss in the population is 1
percent per year. Those who take an analgesic have an increased risk
beyond the 1 percent, Dr. Sharon G. Curhan, of Channing Laboratory and
Brigham and Women's Hospital, Boston explained in an email to Reuters
Health.
"But if you consider that people continue to take the analgesic
foryears, then after 10 years the risk would be 10 percent in the
overall population and the risk in those taking an analgesic would be
proportionately higher," Curhan said.
"Even though these analgesics are available in the drugstore without a
prescription, they are still medications and there are potential side
effects," Curhan said.
"If individuals find a need to take these types of medications
regularly, they should consult with their health care professional in
order to discuss the risks and benefits and to explore possible
alternatives," she advised.
The findings, published in the American Journal of Medicine thismonth,
stem from nearly 27,000 men enrolled since 1986 in the Health
Professionals' Follow-Up Study. As part of the study, the men, who
were between 40 and 74 years old at the outset, provided information
on analgesic use, hearing loss and other relevant factors every 2
years for 18 years, during which time 3,488 men were diagnosed with
hearing loss.
In the group as a whole, the risk of hearing loss, after factoring out
relevant risk factors, was 12 percent higher in men who used aspirin
at least twice a week relative to men who used aspirin less than twice
a week. The risk was about 21 percent higher in those who used NSAIDs
or acetaminophen at least twice a week.
Among men younger than 50, therisk of hearing loss was higher by33
percent, 61 percent and 99 percent with twice weekly use of aspirin,
NSAIDs, and acetaminophen, respectively, compared to risks in men of
the same age who used these painkillers less often. For NSAIDs and
acetaminophen, the risk of hearing loss increased with longer duration
of use.
In contrast to the findings in younger men, regular aspirin use did
not increase the risk of hearing loss in men aged 60 and older, and
the ties between hearing loss and regular use of NSAIDs and
acetaminophen were weaker in the older men.
Curhan's team points out that very high doses of aspirin are well
known to have toxic effects on the ear. These effects include
reversible hearing loss and tinnitus (ringing in the ears). On the
other hand, low-dose aspirin has been reported to protect against
hearing loss caused by certain antibiotics and excessive noise.
Very high doses of NSAIDs are toxic to the ears of animals, and there
have been a few reports of very high doses of NSAIDs causinghearing
loss in humans.
In their study, the researchers didnot have information on dosages
taken by the men or why they were regularly using these medicines --
only how often they took them. They also did not have information on
lifetime exposure to loud noise, a common cause of hearing loss.
"Hearing loss is the most common sensory disorder in the US and
factors other than age and noise might influence the risk," the
researchers note in their report. Aspirin, acetaminophen and ibuprofen
are the three most commonly used drugs in the US and they could be
"one of the few preventable causes of hearing loss," Curhan said.