A new study raises new concerns about Zetia and Vytorin, drugs taken by millions of Americans to lower cholesterol. According to an article by the Associated Press on Philly.com, Zetia failed to shrink buildups in artery walls while a rival drug, Niaspan, did so significantly. Zetia users also suffered more heart attacks and other problems although the numbers of these events were too small to draw firm conclusions [...]
