Mode
Text Size
Log in / Sign up

FDA approved Zithromax (azithromycin) for Multiple Bacterial InfectionsFDA approved Zithromax to treat bacterial infections in adults and children.

AI-generated summary of the cited source, checked by automated accuracy review. How we work

Key Takeaway
Consider Zithromax for mild to moderate bacterial infections but avoid in pneumonia patients requiring hospitalization or with risk factors.

The FDA has approved Zithromax (azithromycin), a macrolide antibacterial drug, for the treatment of mild to moderate infections caused by susceptible bacteria in adults and pediatric patients. Indications include acute bacterial exacerbations of chronic bronchitis, acute bacterial sinusitis, community-acquired pneumonia, pharyngitis/tonsillitis, uncomplicated skin and skin structure infections, urethritis and cervicitis, and genital ulcer disease in adults. For pediatric patients aged 6 months and older, indications include acute otitis media and community-acquired pneumonia; for those aged 2 years and older, pharyngitis/tonsillitis. The approval underscores the importance of using azithromycin only for proven or strongly suspected bacterial infections to reduce drug resistance. Notably, the label advises against use in patients with pneumonia who are inappropriate for oral therapy due to moderate to severe illness or risk factors such as cystic fibrosis, nosocomial infection, bacteremia, or immunosuppression.

Clinical Details (Mechanism · Dosing · Trial Data · Warnings)
Mechanism of Action

Azithromycin is a macrolide antibacterial drug. The mechanism of action is not detailed in the provided label text.

Indication & Patient Population

Zithromax is indicated for mild to moderate infections caused by susceptible bacteria. In adults: acute bacterial exacerbations of chronic bronchitis (due to Haemophilus influenzae, Moraxella catarrhalis, or Streptococcus pneumoniae); acute bacterial sinusitis (H. influenzae, M. catarrhalis, or S. pneumoniae); community-acquired pneumonia (Chlamydophila pneumoniae, H. influenzae, Mycoplasma pneumoniae, or S. pneumoniae) in patients appropriate for oral therapy; pharyngitis/tonsillitis (Streptococcus pyogenes) as alternative to first-line therapy; uncomplicated skin and skin structure infections (Staphylococcus aureus, S. pyogenes, or Streptococcus agalactiae); urethritis and cervicitis (Chlamydia trachomatis or Neisseria gonorrhoeae); and genital ulcer disease in men (Haemophilus ducreyi). In pediatric patients (6 months and older): acute otitis media (H. influenzae, M. catarrhalis, or S. pneumoniae); community-acquired pneumonia (C. pneumoniae, H. influenzae, M. pneumoniae, or S. pneumoniae) appropriate for oral therapy; and pharyngitis/tonsillitis (S. pyogenes) in patients 2 years and older as alternative to first-line therapy.

Dosing & Administration

Adults: For community-acquired pneumonia, pharyngitis/tonsillitis (second-line), and uncomplicated skin/skin structure: 500 mg as a single dose on Day 1, then 250 mg once daily on Days 2-5. For acute bacterial exacerbations of chronic bronchitis: same 5-day regimen or 500 mg once daily for 3 days. For acute bacterial sinusitis: 500 mg once daily for 3 days. For genital ulcer disease (chancroid) and non-gonococcal urethritis/cervicitis: single 1 gram dose. For gonococcal urethritis/cervicitis: single 2 gram dose. Pediatric patients: Acute otitis media (6 months and older): 30 mg/kg as a single dose, or 10 mg/kg once daily for 3 days, or 10 mg/kg on Day 1 then 5 mg/kg on Days 2-5. Acute bacterial sinusitis (6 months and older): 10 mg/kg once daily for 3 days. Community-acquired pneumonia (6 months and older): 10 mg/kg on Day 1 then 5 mg/kg once daily on Days 2-5. Pharyngitis/tonsillitis (2 years and older): 12 mg/kg once daily for 5 days.

Key Clinical Trial Data

Trial data not available in label.

Warnings & Contraindications

Azithromycin should not be used in patients with pneumonia who are inappropriate for oral therapy due to moderate to severe illness or risk factors including cystic fibrosis, nosocomial infections, known or suspected bacteremia, requiring hospitalization, elderly or debilitated patients, or significant underlying health problems compromising response (e.g., immunodeficiency, functional asplenia). To reduce drug resistance, use only for proven or strongly suspected bacterial infections.

Place in Therapy

Zithromax is a macrolide antibacterial for mild to moderate infections. It is an alternative for pharyngitis/tonsillitis when first-line therapy cannot be used. For pneumonia, it is limited to patients appropriate for oral therapy. It is also indicated for sexually transmitted infections including urethritis, cervicitis, and chancroid.

The FDA has approved a new drug called Zithromax (azithromycin) to treat certain bacterial infections. It is a macrolide antibiotic that works against bacteria causing conditions like bronchitis, sinusitis, pneumonia, strep throat, skin infections, and some sexually transmitted infections. For children 6 months and older, it can treat ear infections and pneumonia. For children 2 years and older, it can also treat strep throat.

This approval is for mild to moderate infections. It is not for people with severe pneumonia or those who cannot take oral medicine. The drug should only be used when a bacterial infection is confirmed or strongly suspected. Using antibiotics when they are not needed can lead to drug resistance, making infections harder to treat.

For patients, this approval means there is another treatment option available. However, it is important to talk to your doctor about whether Zithromax is right for you. Your doctor will decide based on your specific infection and health history. Always take the full course of antibiotics as prescribed, even if you start feeling better.

Remember, antibiotics do not work against viruses like the common cold or flu. Using them for viral infections is not helpful and can be harmful. If you have questions about your treatment, ask your doctor or pharmacist.

What this means for you:
Zithromax is a new antibiotic for bacterial infections; use only as prescribed to prevent resistance.

Study Details

Study typeFda approval
PublishedMay 2002
View Original Abstract ↓
1 INDICATIONS AND USAGE 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. [see Dosage and Administration (2) ] ZITHROMAX is a macrolide antibacterial drug indicated for mild to moderate infections caused by designated, susceptible bacteria: • Acute bacterial exacerbations of chronic bronchitis in adults ( 1.1 ) • Acute bacterial sinusitis in adults ( 1.1 ) • Uncomplicated skin and skin structure infections in adults ( 1.1 ) • Urethritis and cervicitis in adults ( 1.1 ) • Genital ulcer disease in men ( 1.1 ) • Acute otitis media in pediatric patients (6 months of age and older) ( 1.2 ) • Community-acquired pneumonia in adults and pediatric patients (6 months of age and older) ( 1.1 , 1.2 ) • Pharyngitis/tonsillitis in adults and pediatric patients (2 years of age and older) ( 1.1 , 1.2 ) Limitation of Use: 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 ) 1.1 Adult Patients • Acute bacterial exacerbations of chronic bronchitis due to Haemophilus influenzae , Moraxella catarrhalis, or Streptococcus pneumoniae . • Acute bacterial sinusitis due to Haemophilus influenzae , Moraxella catarrhalis. or Streptococcus pneumoniae . • Community-acquired pneumonia due to Chlamydophila pneumoniae , Haemophilus influenzae , Mycoplasma pneumoniae, or Streptococcus pneumoniae in patients appropriate for oral therapy. • Pharyngitis/tonsillitis caused by Streptococcus pyogenes as an alternative to first-line therapy in individuals who cannot use first-line therapy. • Uncomplicated skin and skin structure infections due to Staphylococcus aureus , Streptococcus pyogenes , or Streptococcus agalactiae . • Urethritis and cervicitis due to Chlamydia trachomatis or Neisseria gonorrhoeae . • Genital ulcer disease in men due to Haemophilus ducreyi (chancroid). Due to the small number of women included in clinical trials, the efficacy of azithromycin in the treatment of chancroid in women has not been established. 1.2 Pediatric Patients [see Use in Specific Populations (8.4) and Clinical Studies (14.2) ] • Acute otitis media ( >6 months of age) caused by Haemophilus influenzae , Moraxella catarrhalis, or Streptococcus pneumoniae. • Community-acquired pneumonia ( >6 months of age) due to Chlamydophila pneumoniae , Haemophilus influenzae , Mycoplasma pneumoniae , or Streptococcus pneumoniae in patients appropriate for oral therapy. • Pharyngitis/tonsillitis ( >2 years of age) caused by Streptococcus pyogenes as an alternative to first-line therapy in individuals who cannot use first-line therapy. 1.3 Limitations of Use 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 such as any of the following: • patients with cystic fibrosis, • patients with nosocomial infections, • patients with known or suspected bacteremia, • patients requiring hospitalization, • elderly or debilitated patients, or • patients with significant underlying health problems that may compromise their ability to respond to their illness (including immunodeficiency or functional asplenia). 1.4 Usage 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.
Free Newsletter

Clinical research that matters. Delivered to your inbox.

Join thousands of clinicians and researchers. No spam, unsubscribe anytime.