Brief Answer:
Seems incomplete...
Detailed Answer:
Hi,
Your query seems incomplete. I assume you wish to know about antibiotics used in treating bronchitis.
Commonly bronchitis is caused by viral infections which are self resolving. Rarely do they need antiviral medications. Sometimes when the cause is bacterial, preferred antibiotics are fluroquinolone group of drugs (levofloxacin), 1st generation cephalosporins (cefixime) and macrolide antibiotics (azithromycin). It's ideal to use antibiotics based on culture growth from sputum / swab tests.
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