Approximately one in ten American children uses one or more cough and cold medications during a given week, researchers from Boston University's Slone Epidemiology Center have found.
The study has been published in the August issue of the journal Pediatrics.
Pediatric cough and cold medications are widely marketed in the U.S. but surprisingly little is known about just how often they are used by children.
This information is especially important in light of recent revelations that cough and cold medications are responsible for serious adverse events and even deaths among children.
To define the frequency and patterns of use, the researchers analyzed data between 1999 and 2006 from the Slone Survey, a national telephone survey of medication use in a representative sample of the U.S. population.
The researchers considered all oral medicines that are approved by the FDA to treat children's coughs and colds.
The researchers found that in a given week, at least one cough and cold medication was used by 10.1 percent of U.S. children.
In terms of active ingredients contained in these medications, exposure was highest to decongestants and antihistamines (6.3 percent each), followed by anti-cough ingredients (4.1 percent) and expectorants (1.5 percent).
Exposures to cough and cold medications was highest among 2- to 5-year olds and children under 2 years of age.
Among all the products used, 64.2 percent contained more than one active ingredient. The most commonly used product types were single-ingredient antihistamines, antihistamine/decongestant combinations and antihistamine/decongestant/anti-cough combinations.
The researchers also found the use of cough and cold medications declined from 12.3 percent in 1999-2000 to 8.4 percent in 2005-2006.