The revelation that the diabetes drug Avandia can potentially cause heart disease is the latest in a string of pharmaceutical disappointments. Vioxx was pulled from the market in 2004 because it doubled the risks for heart attacks and strokes. Eli Lilly recently paid $750 million to settle lawsuits alleging that Zyprexa causes diabetes. Many have criticized the Food and Drug Administration as being too lax about monitoring drug safety. While those criticisms have merit, there is another culprit: the transformation of continuing medical education into an enterprise for drug marketing. The chore of teaching doctors how to practice medicine has been handed to the pharmaceutical industry. As a result, dangerous side effects are rarely on the curriculum. Most states require that doctors obtain a minimum number of credit hours of continuing medical education each year to maintain their medical licenses. Not so long ago, most of these courses were produced and paid for by universities and medical associations. But this has changed drastically over the past decade. Drug-industry financing of continuing medical education has nearly quadrupled since 1998, from $302 million to $1.12 billion. Half of all continuing medical education courses in the United States are now paid for by drug companies, up from a third a decade ago. Because pharmaceutical companies now set much of the agenda for what doctors learn about drugs, crucial information about potential drug dangers is played down, to the detriment of patient care. For example, GlaxoSmithKline footed the bill for dozens of educational courses intended to emphasize the benefits of Avandia over other drugs.