Clarithromycindrug info

24 HR clarithromycin 500 MG Extended Release Oral Tablet

What it is used for

Clarithromycin extended-release tablets is a macrolide antimicrobial indicated for mild to moderate infections caused by designated, susceptible bacteria in the following: Acute Bacterial Exacerbation of Chronic Bronchitis in Adults Acute Maxillary Sinusitis Community-Acquired Pneumonia Limitations of Use Clarithromycin extended-release tablets are indicated only for acute bacterial exacerbation of chronic bronchitis, acute maxillary sinusitis, and community-acquired pneumonia in adults. To reduce the development of drug-resistant bacteria and maintain the effectiveness of clarithromycin extended-release tablets and other antibacterial drugs, clarithromycin extended-release tablets should be used only to treat or prevent infections that are proven or strongly suspected to be caused by bacteria.

1.1 Acute Bacterial

Exacerbation of Chronic Bronchitis Clarithromycin extended-release tablets are indicated in adults for the treatment of mild to moderate infections caused by susceptible isolates due to Haemophilus influenzae, Haemophilus parainfluenzae, Moraxella catarrhalis, or Streptococcus pneumoniae.

1.2 Acute Maxillary

Sinusitis Clarithromycin extended-release tablets (in adults) are indicated for the treatment of mild to moderate infections caused by susceptible isolates due to Haemophilus influenzae, Moraxella catarrhalis, or Streptococcus pneumoniae.

1.3 Community-Acquired

Pneumonia Clarithromycin extended-release tablets are indicated for the treatment of mild to moderate infections caused by susceptible isolates due to: Haemophilus influenzae (in adults) Haemophilus parainfluenzae (in adults) Moraxella catarrhalis (in adults) Mycoplasma pneumoniae, Streptococcus pneumoniae, Chlamydophila pneumoniae (in adults)

1.9 Limitations of

Use Clarithromycin extended-release tablets are indicated only for acute maxillary sinusitis, acute bacterial exacerbation of chronic bronchitis, and community-acquired pneumonia in adults. The efficacy and safety of clarithromycin extended-release tablets in treating other infections for which clarithromycin immediate release tablets and clarithromycin granules are approved have not been established. There is resistance to macrolides in certain bacterial infections caused by Streptococcus pneumoniae and Staphylococcus aureus. Susceptibility testing should be performed when clinically indicated. 1.10 Usage To reduce the development of drug-resistant bacteria and maintain the effectiveness of clarithromycin extended-release tablets and other antibacterial drugs, clarithromycin extended-release tablets 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.

1.1 Acute Bacterial

Exacerbation of Chronic Bronchitis Clarithromycin extended-release tablets are indicated in adults for the treatment of mild to moderate infections caused by susceptible isolates due to Haemophilus influenzae, Haemophilus parainfluenzae, Moraxella catarrhalis, or Streptococcus pneumoniae.

1.2 Acute Maxillary

Sinusitis Clarithromycin extended-release tablets (in adults) are indicated for the treatment of mild to moderate infections caused by susceptible isolates due to Haemophilus influenzae, Moraxella catarrhalis, or Streptococcus pneumoniae.

1.3 Community-Acquired

Pneumonia Clarithromycin extended-release tablets are indicated for the treatment of mild to moderate infections caused by susceptible isolates due to: Haemophilus influenzae (in adults) Haemophilus parainfluenzae (in adults) Moraxella catarrhalis (in adults) Mycoplasma pneumoniae, Streptococcus pneumoniae, Chlamydophila pneumoniae (in adults)

1.9 Limitations of

Use Clarithromycin extended-release tablets are indicated only for acute maxillary sinusitis, acute bacterial exacerbation of chronic bronchitis, and community-acquired pneumonia in adults. The efficacy and safety of clarithromycin extended-release tablets in treating other infections for which clarithromycin immediate release tablets and clarithromycin granules are approved have not been established. There is resistance to macrolides in certain bacterial infections caused by Streptococcus pneumoniae and Staphylococcus aureus. Susceptibility testing should be performed when clinically indicated.

1.10 Usage To reduce the development of drug-resistant bacteria and maintain the effectiveness of clarithromycin extended-release tablets and other antibacterial drugs, clarithromycin extended-release tablets 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.

Text above is quoted in full from the FDA-approved drug label published by openFDA, effective October 17, 2025. Matched to this product by RxNorm code. Cross-references to other sections of the full prescribing information have been removed, since they point to a document not shown here. Nothing else is changed: no sentence is shortened, reworded or summarised.

Description

Clarithromycin is a semi-synthetic macrolide antimicrobial for oral use. Chemically, it is 6- 0 -methylerythromycin. The molecular formula is C 38 H 69 NO 13, and the molecular weight is 747.96.

The structural formula is: Figure 1: Structure of Clarithromycin Clarithromycin is a white to off-white crystalline powder. It is soluble in acetone, slightly soluble in methanol, ethanol, and acetonitrile, and practically insoluble in water. Clarithromycin is available as extended-release tablets. Each white or off-white, capsular-shaped film-coated clarithromycin extended-release tablets, USP contains 500 mg of clarithromycin and the following inactive ingredients: glyceryl dibehenate, hypromellose, lactose monohydrate, magnesium stearate, polyethylene glycol, and titanium dioxide. Clarithromycin extended-release tablets, USP meets the dissolution specifications which were established according to the USP monograph-clarithromycin extended-release tablets Test 2. Chemical structure for clarithromycin

Text above is quoted in full from the FDA-approved drug label published by openFDA, effective October 17, 2025. Matched to this product by RxNorm code. Cross-references to other sections of the full prescribing information have been removed, since they point to a document not shown here. Nothing else is changed: no sentence is shortened, reworded or summarised.

This page reproduces regulatory text for reference. It is not medical advice, and KenyRx is not a pharmacy or a prescriber. Talk to a doctor or pharmacist about whether a medicine is right for you.

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