A clinical trial of Zetia, a popularly prescribed cholesterol-lowering drug, “failed to show that the drug has any medical benefits.” In fact, fatty plaques grew almost twice as fast in patients who took Zetia along with Zocor in a combo product called Vytorin. However, “patients who are taking Vytorin or Zetia should talk to their doctors if they are concerned and not discontinue taking the medicines on their own.” [New York Times]