This week the Food and Drug Administration (FDA) requested a new warning on a family of antibiotics called fluoroquinolones.  This family includes ciprofloxacin (Cipro), levofloxacin (Levaquin), moxifloxacin (Avelox) and others.  The warning has to do with the increased risk of tendonitis and tendon rupture due to these antibiotics. This information is not new.  The increased risk has been known for a few years, but as additional cases have been reported, the FDA chose to act. This complicatio...