New Plavix Warning: Lack of Effect in Many People
The anti-clotting drug Plavix will get a new "black box" label warning that normal doses don't work for 2% to 14% of patients.

Occasional High Blood Pressure Risky, Too?
Occasional high blood pressure readings are often ignored as nothing to worry about, but a new study suggests this episodic high blood pressure is a strong predictor of strokes.