A consumer advocacy group says the antidepressant nefazodone is dangerous, and it's suing the government in an effort to ban its sales.
Public Citizen says the drug, which is marketed by Bristol-Myers Squibb as Serzone, can cause deadly liver failure and is linked to 20 deaths since 1994, when the drug was first put on the market. And the group says it's impossible to predict which patient is at risk.