 Antipsychotic drugs are now the top-selling class of pharmaceuticals in America, generating annual revenue of about $14.6 billion.Every major company selling the drugs — Bristol-Myers Squibb, Eli Lilly, Pfizer, AstraZeneca and Johnson & Johnson — has either settled recent government cases, under the False Claims Act, for hundreds of millions of dollars or is currently under investigation for possible health care fraud.Following charges of illegal marketing, two of the settlements set records last year for the largest criminal fines ever imposed on corporations.