Clarithromycin Uses

Clarithromycin is used to treat bacterial infections in many parts of the body, including the lungs (pneumonia, chronic bronchitis), skin, sinuses, ears, and throat. It is also used to eliminate Helicobacter pylori (this is a bacteria that causes stomach and duodenal ulcer disease), in combination with other medications. In addition, clarithromycin is used to prevent Mycobacterium avium complex (MAC), an infection that occurs in people with HIV. 

There may be other uses of clarithromycin—your pharmacist or doctor can give you further drug information.

Clarithromycin Mechanism of Action

Clarithromycin works by preventing the growth of bacteria.

Clarithromycin Doses

Clarithromycin tablets are available in strengths of 250 mg and 500 mg (immediate release tablets) and 500 mg (extended release tablets). There is also a 125 mg/5 mL and 250 mg/5 mL oral suspension. 

The usual dose of clarithromycin in adults is 250 mg to 500 mg every 8-12 hours (2-3 times a day) for 7-14 days. The recommended daily dose for children is 15 mg/kg/day every 12 hours.