Health Winners & Losers: Insmed

Health stocks managed to stay in the green Thursday amid -- and in some cases despite -- regulatory, business and clinical news.

A Food and Drug Administration advisory panel determined that patients taking anti-seizure drugs are at higher risk of having suicidal tendencies. The agency was set to vote later in the day on whether to recommend black box warnings for such drugs and whether the findings apply to only the drugs the government considered in a 200-study analysis -- the findings of which were the basis of the panel.

Big Pharma companies like Pfizer (PFE Quote), Merck (MRK Quote) and GlaxoSmithKline (GSK Quote), among others, all market anti-seizure drugs. Those stocks traded up 0.1%, down 0.2%, and down 0.3%, respectively. They are all components of the Amex pharmaceutical index, which was up 0.4% at 306.38. ...