Controversy
In 1989, Joseph Wesbecker shot and killed eight people and injured 12 others before killing himself at his place of work in Kentucky. Wesbecker had been taking the selective serotonin reuptake inhibitor (SSRI) antidepressant fluoxetine for four weeks before these homicides, and this led to a legal action against the makers of fluoxetine, Eli Lilly. The case was tried and settled in 1994, and as part of the settlement a number of pharmaceutical company documents about drug-induced activation were released into the public domain. Subsequent legal cases have further raised the possibility of a link between antidepressant use and violence.
The Prozac Survivors Support Group created a report on 288 individuals who had suffered adverse effects from Fluoxetine during 1991 and 1992. It showed that most of the cases led to violence against self or other individuals. There were 164 cases in the suicide and suicide ideation category, including 34 complete suicides. There were also 133 cases of crime and violence, which featured 14 murders, nine attempted murders, 39 violent actions, 54 violent preoccupations and 17 crimes. The report also showed that 13 individuals had become addicted to Fluoxetine and 14 cases of alcohol forming or worsening.
A meta-analysis published in February 2008 combined 35 clinical trials of four newer antidepressants (fluoxetine, paroxetine (Paxil), nefazodone (Serzone) and venlafaxine (Effexor)). These antidepressants belonging to three different pharmacological groups were considered together, and the authors did not analyze them separately. The authors concluded that "although the difference [between the placebo and antidepressants] easily attained statistical significance", it did not meet the criterion for clinical significance, as used by National Institute for Health and Clinical Excellence (UK), "for any but the most severely depressed patients." Some articles in the press using the titles "The creation of the Prozac myth" and "Prozac does not work in majority of depressed patients" presented these general findings about the relative efficacy of antidepressants and placebo as the findings about ineffectiveness of fluoxetine. In a follow-up article, the authors of the meta-analysis noted that "unfortunately, during its initial coverage, the media often portrayed the results as “antidepressants do not work”, which misrepresented our more nuanced pattern of findings."
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