GENERIC NAME: clarithromycin
BRAND NAME: Biaxin, Biaxin XL
DRUG CLASS AND MECHANISM: Clarithromycin is a semi-synthetic macrolide antibiotic chemically related to erythromycin and azithromycin (Zithromax). It is effective against a wide variety of bacteria, such as Haemophilus influenzae, Streptococcus pneumoniae, Mycoplasma pneumoniae, Staphylococcus aureus, and mycobacterium avium, and many others. Like all macrolide antibiotics, clarithromycin prevents bacteria from growing by interfering with their ability to make proteins. Due to the differences in the way proteins are made in bacteria and humans, the macrolide antibiotics do not interfere with production of proteins in humans. The FDA approved clarithromycin in October 1991.
PRESCRIBED FOR: Clarithromycin is effective against susceptible bacteria causing infections of the middle ear, tonsillitis, throat infections, laryngitis, bronchitis, pneumonia, and skin infections. It also is used in treating infections caused by mycobacterium avium, a bacterium closely related to the bacterium that causes tuberculosis. Clarithromycin has been used in combination with omeprazole/sodium bicarbonate (Prilosec) in treating H. Pylori that causes stomach ulcers.
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