Skip to main page content
Access keys NCBI Homepage MyNCBI Homepage Main Content Main Navigation
Comparative Study
. 2011 Mar;45(3):350-6.
doi: 10.1345/aph.1P572. Epub 2011 Feb 22.

The Sources and Popularity of Online Drug Information: An Analysis of Top Search Engine Results and Web Page Views

Affiliations
Comparative Study

The Sources and Popularity of Online Drug Information: An Analysis of Top Search Engine Results and Web Page Views

Michael R Law et al. Ann Pharmacother. .

Abstract

Background: The Internet has become a popular source of health information. However, there is little information on what drug information and which Web sites are being searched.

Objective: To investigate the sources of online information about prescription drugs by assessing the most common Web sites returned in online drug searches and to assess the comparative popularity of Web pages for particular drugs.

Methods: This was a cross-sectional study of search results for the most commonly dispensed drugs in the US (n=278 active ingredients) on 4 popular search engines: Bing, Google (both US and Canada), and Yahoo. We determined the number of times a Web site appeared as the first result. A linked retrospective analysis counted Wikipedia page hits for each of these drugs in 2008 and 2009.

Results: About three quarters of the first result on Google USA for both brand and generic names linked to the National Library of Medicine. In contrast, Wikipedia was the first result for approximately 80% of generic name searches on the other 3 sites. On these other sites, over two thirds of brand name searches led to industry-sponsored sites. The Wikipedia pages with the highest number of hits were mainly for opiates, benzodiazepines, antibiotics, and antidepressants.

Conclusions: Wikipedia and the National Library of Medicine rank highly in online drug searches. Further, our results suggest that patients most often seek information on drugs with the potential for dependence, for stigmatized conditions, that have received media attention, and for episodic treatments. Quality improvement efforts should focus on these drugs.

Similar articles

See all similar articles

Cited by 14 articles

See all "Cited by" articles

Publication types

MeSH terms

LinkOut - more resources

Feedback