Zithromax (azithromycin) is an antibiotic that fights bacteria. Zithromax is used to treat many different types of infections caused by bacteria, such as respiratory infections, skin infections, ear infections, and sexually transmitted diseases. Zithromax may also be used for purposes not listed in this medication guide. You should not use Zithromax if you have ever had jaundice or liver problems caused by taking azithromycin. You should not use Zithromax if you are allergic to azithromycin, or if: Zithromax is not expected to harm an unborn baby. Tell your doctor if you are pregnant or plan to become pregnant. It is not known whether azithromycin passes into breast milk or if it could harm a nursing baby. Do not give Zithromax to a child younger than 6 months old. Azithromycin should not be used in patients with pneumonia who are judged to be inappropriate for oral therapy because of moderate to severe illness or risk factors. (1.3) To reduce the development of drug-resistant bacteria and maintain the effectiveness of ZITHROMAX (azithromycin) and other antibacterial drugs, ZITHROMAX (azithromycin) should be used only to treat infections that are proven or strongly suspected to be caused by susceptible bacteria. (1.4) ZITHROMAX (azithromycin) is a macrolide antibacterial drug indicated for the treatment of patients with mild to moderate infections caused by susceptible strains of the designated microorganisms in the specific conditions listed below. Recommended dosages and durations of therapy in adult and pediatric patient populations vary in these indications. To reduce the development of drug-resistant bacteria and maintain the effectiveness of ZITHROMAX (azithromycin) and other antibacterial drugs, ZITHROMAX (azithromycin) should be used only to treat infections that are proven or strongly suspected to be caused by susceptible bacteria. When culture and susceptibility information are available, they should be considered in selecting or modifying antibacterial therapy. In the absence of such data, local epidemiology and susceptibility patterns may contribute to the empiric selection of therapy. After mixing, store suspension at 5° to 30°C (41° to 86°F) and use within 10 days. ZITHROMAX 250 mg tablets are supplied as pink modified capsular shaped, engraved, film-coated tablets containing azithromycin dihydrate equivalent to 250 mg of azithromycin.
Zithromax is an antibiotic of the broad spectrum action by means of its specific influence on bacteria. In low doses, Azithromycin provides a bacteriostatic action and prevent a division of the new cells of bacteria. Azithromycin, as the dihydrate, is a white crystalline powder with a molecular formula of C 38 H 72 N 2 O 12 •2H 2 O and a molecular weight of 785.0. ZITHROMAX tablets contain azithromycin dihydrate equivalent to 600 mg azithromycin.