What is Biaxin XL (clarithromycin)?
Clarithromycin is in a group of drugs called macrolide antibiotics. Clarithromycin fights bacteria in your body. Clarithromycin is used to treat many different types of bacterial infections affecting the skin and respiratory system. Clarithromycin is also used together with other medicines to treat stomach ulcers caused by Helicobacter pylori. Clarithromycin may also be used for other purposes not listed in this medication guide.