[2,3,4] Azithromycin dihydrate [a] was supplied in vials containing 500 mg of azithromycin powder. Added to each vial was 4.8 mL of sterile water for injection, resulting in a 100-mg/ mL solution.

The dose will depend on your infection. The usual dose to treat Chlamydia is two 500 mg tablets taken as a single dose. For other infections AZITHROMYCIN VIATRIS is usually taken once a day.