The Internet is a potential source of information for practitioners an
d researchers of pharmaceutical sciences. Despite its explosive growth
and popularity, pharmacists and other health care providers have been
slow to use the Internet as a source of clinical information. We have
identified and evaluated several sites available on the Internet that
are devoted to providing information related to professional practice
, pharmacotherapy, and toxicology. We have concerns, however, regardin
g the quality of the available information and advise users to be caut
ious in using the data they obtain.