Zyprexa is Lilly's top-selling drug, with sales of $4.2 billion last year.
Zyprexa was Lilly's top-selling drug, with sales of $4.2 billion in 2011.
No one expects a quick end to the crunch, because several top-selling drugs will lose American patent protection by early 2007.
Within the next several weeks, a federal judge may decide the fate of Prilosec, once the world's top-selling drug.
Analysts say that Lipitor is on its way to becoming the top-selling drug in the world.
These painkillers are the three top-selling over-the-counter drugs, taken by one in five Americans at least once a week.
Efexor accounted for $2.7 billion in sales last year and is Wyeth's top-selling drug.
Of the 10 top-selling drugs in the world, half offer almost no benefit over drugs marketed previously.
Zyprexa remains Lilly's top-selling drug, with $4 billion in worldwide annual sales.
Sales last year grew 13 percent, to $4.34 billion, making it one of the top-selling drugs in the world.
