Cipro is of course an antibiotic. It is commonly prescribed for UTI's. It would not HURT bronchitis, but it may not be the BEST choice for it either (may not completely help, etc.)
While many respiratory afflictions are viral in nature, bronchitis is often a bacterial infection and antibiotics are commonly (almost routinely) prescribed for this.
As the other have said, don't take a partial prescription of antibiotics if you have one lying around (which you shouldn't -- always take the entire course!!) Antbiotics work by eliminating the bacteria affecting you. As is the natural way, the stronger bacteria can survive the first couple days of treatment whereas the weaker bacteria are killed off right away. By only taking the first couple days of an antibiotic prescription you will be killing off the weakest bacteria while not only leaving the stronger bacteria to survive and be passed on, but also to strengthen even more by surviving antibiotics.
This is why resistant bacteria exists.
Sorry for the long answer, but it was a good opportunity to educate others! lol!
