Licinio: I became concerned that I might be putting patients at risk, so I examined all available data from different perspectives and the conclusions that I had were pretty different from what was being said out there.
Narrator: Licinio's search of studies in a national database from 1960 to 2004 on antidepressants and suicide, found that since the introduction of drugs like Prozac in 1988, suicide rates have actually plummeted.
Licinio: The more that the drugs are prescribed, the fewer suicides we have.
Narrator: Licinio's conclusion was that the biggest cause of suicide in the United States is not antidepressants, but rather untreated depression. For Science Today, I'm Larissa Branin.