What is the normal dosage of zithromax prescribed for bronchitis?

Bronchitis: Bronchitis mostly are viral and need no antibiotics. If it is due to sinus infection, i rather use Augmentin (amoxicillin and clavulanate) instead of zithromax.

None, I hope: Most bronchitis is viral, and Azithromycin won't help. If you have a known atypical pneumonia from bacterial causes it depends on the infectious agent, etc. The typical dose is 500, g for one day then 250mg for four days for a bronchitis in a patient with COPD and worsening cough... Otherwise chicken soup is just the thing.