Clarithromycin (Systemic).

 
In the U.S. -- 
     Biaxin 
 
In Canada -- 
     Biaxin 
     Antibacterial, systemic 
 
      antimycobacterial 
Description 

Clarithromycin (kla-RITH-roe-mye-sin ) is used to treat bacterial infections in many different parts of the body. It works by killing bacteria or preventing their growth. It is also used to treat and prevent Mycobacterium avium complex (MAC) infection, and to treat duodenal ulcers caused by Helicobacter pylori. However, this medicine will not work for colds, flu, or other virus infections. Clarithromycin also may be used for other problems as determined by your doctor.

Clarithromycin is available only with your doctor's prescription, in the following dosage forms:

 
Oral 
 
     Oral suspension (U.S. and Canada) 
 
     Tablets (U.S. and Canada) 
 
     Extended-release tablets (U.S.) 
Before Using This Medicine 

In deciding to use a medicine, the risks of taking the medicine must be weighed against the good it will do. This is a decision you and your doctor will make. For clarithromycin, the following should be considered:

 
Allergies -- 

Tell your doctor if you have ever had any unusual or allergic reaction to clarithromycin or to any related medicines, such as erythromycin. Also tell your health care professional if you are allergic to any other substances, such as foods, preservatives, or dyes.

 
Pregnancy -- 

Clarithromycin has not been studied in pregnant women. However, studies in animals have shown that …