A class action lawsuit has been filed against pharmaceutical powerhouse Sanofi-Aventis alleging that the company hid data concerning adverse events associated with their obesity medication Zimulti. The French company allegedly concealed data showing Zimulti's propensity to cause depression. Zimulti has also been shown to increase suicidal ideation and action in some cases.

In June the FDA unanimously decided that Zimulti could not be recommended for approval in the U.S.; however, the drug can be purchased through online pharmacies based in other countries.