After taking azithromycin 250mg how long does it take for the bacteria to die?

10DaysFromStart. Azithromycine given as Z Pack is given for 5 days course.But the Antibiotic remains in the tisues in your body for another 5 days.So if you are treating a bacterial infection the Antibiotic is working for 10 days and the susceptical Bacteria will be presumed dead in 10 days.