These include levofloxacin (Levaquin; Johnson & Johnson), moxifloxacin (Avelox; Bayer/Merck) and linezolid (Zyvox; Pfizer), which are expected to lose patent protection in 2011, 2014 and 2016 ...

When a medication works right, it boosts your health or helps you feel better. But a drug can bring on problems if it doesn't mix well with something else you put into your body, like another ...