What are clarithromycin tablets and extended-release tablets?
CLARITHROMYCIN (Biaxin reg; or Biaxin reg; XL) is an antibiotic. Clarithromycin kills certain bacteria or stops their growth. It treats ear, lung, sinus, throat and skin infections. This medicine is also is used to treat a certain bacteria that can cause stomach ulcers. Clarithromycin will not work for colds, flu, or other virus infections. Biaxin reg; XL is an extended-release form of clarithromycin that only needs to be taken once daily. Generic clarithromycin tablets and extended-release tablets are available.