clarithromycin, Biaxin, Biaxin XL (cont.)

Pharmacy Author:
Medical and Pharmacy Editor:

SIDE EFFECTS: Clarithromycin generally is well tolerated, and side effects usually are mild and transient. Common side effects of clarithromycin are:

Other important side effects which are rare, but serious include:

Clarithromycin should be avoided by patients known to be allergic to clarithromycin or other chemically-related macrolide antibiotics, such as erythromycin. Treatment with clarithromycin and other antibiotics can alter the normal bacteria flora of the colon and permit overgrowth of C. difficile, a bacterium responsible for pseudomembranous colitis. Patients who develop pseudomembranous colitis as a result of antibiotics treatment may experience diarrhea, abdominal pain, fever, and sometimes even shock.



PREPARATIONS: Tablets (immediate or extended release): 250 and 500 mg. Suspension: 125 or 250 mg per 5 ml (teaspoonful).

Medically Reviewed by a Doctor on 12/30/2014

Report Problems to the Food and Drug Administration

You are encouraged to report negative side effects of prescription drugs to the FDA. Visit the FDA MedWatch website or call 1-800-FDA-1088.

Pill Finder Tool

Need help identifying pills and medications?
Use the pill identifier tool on RxList.

Back to Medications Index