TAB - ACUTE SINUSITIS,500 MG DAILY FOR 7 -10 DAYS, EXACERBATION OF CHRONIC BRONCHITIS,250 - 500 MG DAILY FOR 7 -14 DAYS.UTI 250 MG DAILY FOR 7 -14 DAYS . INJ - BY IV INF (OVER ATLEAST,60 MIN FOR 500 MG ),COMMUNITY-ACQUIRED PNEUMONIA, 500 MG OD OR BD.