Drug stocks zigzag; King, AstraZeneca gain By: MarketWatch May 11, 2009 at 11:15 AM EDT Drug stocks trade mixed as shares of King Pharmaceuticals gain on a better-than-expected earnings report. Read More >> Related Stocks: Astrazeneca Plc ADR Bristol-Myers Squibb Eli Lilly Sanofi-Aventis S.A. ADR