Zithromax Injection (Azithromycin Injection) - Summary

SUMMARY

ZITHROMAX (azithromycin for injection) contains the active ingredient azithromycin, an azalide, a subclass of macrolide antibiotics, for intravenous injection.

ZITHROMAX (azithromycin for injection) is indicated for the treatment of patients with infections caused by susceptible strains of the designated microorganisms in the conditions listed below.

Community-acquired pneumonia due to Chlamydia pneumoniae, Haemophilus influenzae, Legionella pneumophila, Moraxella catarrhalis, Mycoplasma pneumoniae, Staphylococcus aureus, or Streptococcus pneumoniae in patients who require initial intravenous therapy.

Pelvic inflammatory disease due to Chlamydia trachomatis, Neisseria gonorrhoeae, or Mycoplasma hominis in patients who require initial intravenous therapy. If anaerobic microorganisms are suspected of contributing to the infection, an antimicrobial agent with anaerobic activity should be administered in combination with ZITHROMAX.

ZITHROMAX^® (azithromycin for injection) should be followed by ZITHROMAX by the oral route as required. (See DOSAGE AND ADMINISTRATION.)

Appropriate culture and susceptibility tests should be performed before treatment to determine the causative microorganism and its susceptibility to azithromycin. Therapy with ZITHROMAX may be initiated before results of these tests are known; once the results become available, antimicrobial therapy should be adjusted accordingly.

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 or prevent 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.

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NEWS HIGHLIGHTS RELATED TO ZITHROMAX INJECTION

Published Studies Related to Zithromax Injection (Azithromycin Injection)

Clinical cure of bacterial conjunctivitis with azithromycin 1%: vehicle-controlled, double-masked clinical trial. [2008.06]
PURPOSE: To analyze the effect of azithromycin 1% ophthalmic solution in DuraSite (InSite Vision, Inc, Alameda, California, USA) on bacterial conjunctivitis. DESIGN: Prospective, randomized, vehicle-controlled, parallel-group, double-masked multicenter clinical study... CONCLUSIONS: Azithromycin 1% ophthalmic solution in DuraSite showed statistically significant differences in clinical resolution and bacterial eradication rates when compared with vehicle. Because it was well tolerated in this population, it may be a viable treatment option for children and adults with bacterial conjunctivitis.

The comparison of single-dose ceftriaxone, five-day azithromycin, and ten-day amoxicillin/clavulanate for the treatment of children with acute otitis media. [2007.10]
The aim of the study was to evaluate the efficacy of short-course antimicrobial therapies [single intramuscular dose of ceftriaxone (50 mg/kg, not exceeding 1 g), 5 days of azithromycin (10 mg/kg on day 1, then 5 mg/kg daily on days 2-5) and the traditional 10-day course of amoxicillin/clavulanate (90/6.4 mg/kg/day in 2 doses)] in children with acute otitis media (AOM)...

Correlation between In vitro susceptibility and treatment outcome with azithromycin in gonorrhoea: A prospective study. [2007.10]
Purpose: This prospective study was carried out to determine the antimicrobial susceptibility of Neisseria gonorrhoeae isolates by disc diffusion method and minimum inhibitory concentration (MIC) by E -test with special reference to azithromycin. Also, the correlation between in vitro susceptibility and treatment outcome with single 2 g oral dose azithromycin was assessed...

Comparing ceftriaxone plus azithromycin or doxycycline for pelvic inflammatory disease: a randomized controlled trial. [2007.07]
OBJECTIVE: To evaluate the equivalence of ceftriaxone plus doxycycline or azithromycin for cases of mild pelvic inflammatory disease (PID)... CONCLUSION: When combined with ceftriaxone, 1g of azithromycin weekly for 2 weeks is equivalent to ceftriaxone plus a 14-day course of doxycycline for treating mild PID.

Efficacy of azithromycin versus systemic meglumine antimoniate (Glucantime) in the treatment of cutaneous leishmaniasis. [2007.07]
Cutaneous leishmaniasis (CL) treatment is painful, and cosmetic results are often unsatisfying.Azithromycin was determined to be not as effective as Glucantime in treatment of Old World CL.

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Clinical Trials Related to Zithromax Injection (Azithromycin Injection)

A Randomized, Open Label, Clinical Trial of the Pharmacokinetics of Azithromycin Following a Single Dose of Azithromycin Sustained Release (2 Gram) or Commercial Azithromycin Tablet (500 mg) to Cancer Patients That Require Lung Surgery [Completed]
The objective of this trial was to characterize the pharmacokinetics of the currently marketed azithromycin immediate release tablet formulation (AZ-IR) versus the azithromycin sustained release liquid formulation (AZ-SR) in lung tissue and bronchial washings, the latter consisting of the epithelial lining fluid (ELF) and cellular elements, mainly alveolar macrophages (AM).

A Multicenter, Randomized, Double-Blind, Double-Dummy Comparative Trial of Azithromycin Sustained Release Versus 3-Day Azithromycin for the Treatment of Strep Throat in Adolescents and Adults [Completed]
To determine if a single 2. 0-g dose of azithromycin SR is at least as effective as a 3-day course of azithromycin (500 mg once daily for 3 days) when used to treat adolescents and adults with strep throat, and to assess efficacy and safety for both treatment regimens.

Zithromax EV in Community-Acquired Pneumonia (CAP) [Completed]
The intravenous (IV) regimen containing azithromycin (Zithromax) plus ampicillin-sulbactam is consistent with current guidelines for the treatment of CAP. In fact the International guidelines for the treatment of CAP in hospitalised patients suggests the use of a combination between a b-lactam and a macrolide.

This trial will allow investigators to evaluate the efficacy of azithromycin plus ampicillin-sulbactam in the treatment of hospitalized subjects with community acquired pneumonia. In addition, this trial will allow investigators to evaluate the safety and toleration of combination therapy.

Fed Study of Azithromycin Tablets 600 mg to Zithromax® Tablets 600 mg [Completed]
The objective of this study was to investigate the bioequivalence of Mylan's azithromycin 600 mg tablets to Pfizer's Zithromax® 600 mg tablets following a single, oral 600 mg (1 x 600 mg) dose administered under fed conditions.

Fasting Study of Azithromycin Tablets 600 mg to Zithromax® Tablets 600 mg [Completed]
The objective of this study was to investigate the bioequivalence of Mylan's azithromycin 600 mg tablets to Pfizer's Zithromax® 600 mg tablets following a single, oral 600 mg (1 x 600 mg) dose administered under fasting conditions.

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