BEWARE, YOUR DOCTOR PROBABLY DOESN'T KNOW THIS "FDA Warns Certain Antibiotics May Cause Aortic Aneurysm "Fluoroquinolone antibiotics are often used to treat serious respiratory infections, pneumonia, urinary tract infection, and even plague and exposure to anthrax. They include drugs sold under the names ciprofloxacin (Cipro), gemifloxacin (Factive), levofloxacin (Levaquin), moxifloxacin (Avelox), norfloxacin (Noroxin) and ofloxacin (Floxin)."