Indication for XIFAXAN 550 mg
XIFAXAN® 550 mg is indicated for reduction in risk of overt hepatic encephalopathy (HE) recurrence in patients ≥18 years of age.
Important Safety Information about XIFAXAN 550 mg
XIFAXAN® (rifaximin) 550 mg tablets are not for everyone. Do not take XIFAXAN if you have a known hypersensitivity to rifaximin or any of the components in XIFAXAN.
XIFAXAN, like nearly all antibiotics, can alter the normal bacteria of the colon. This can lead to an
overgrowth of Clostridium difficile (C. difficile) bacteria. If you take XIFAXAN, there is a chance you could
experience diarrhea caused by C. difficile. C. difficile can cause symptoms ranging in severity from mild
diarrhea to fatal colitis. If you suspect you have C. difficile–associated diarrhea, contact your healthcare
provider immediately, as treatment may need to be discontinued.
XIFAXAN has not been studied in people with MELD scores over 25 and only 8.6% of people in the
controlled study had MELD scores over 19. There is an increased chance that XIFAXAN will spread
through your body if you have more severe hepatic dysfunction. Therefore, if you have severe hepatic
impairment, which is a Child-Pugh score of C, you should talk to your healthcare provider before taking
If you are pregnant, planning to become pregnant, or nursing, talk to your healthcare provider before
In the clinical study, the most common side effects associated with XIFAXAN 550 mg tablets—occurring
in at least 10% of people receiving XIFAXAN—were peripheral edema (swelling, usually in the ankles or
lower limbs), nausea (feeling sick to your stomach), dizziness, fatigue (feeling tired), and ascites (a
buildup of fluid in the abdomen).
Xifaxan 550 mg is not available for sale outside the U.S.
Xifaxan 550 mg is licensed by Alfa Wassermann S.p.A. to Salix Pharmaceuticals, Inc.
You are encouraged to report negative side effects of prescription drugs to the FDA. Visit www.fda.gov/medwatch/ or call 1-800-FDA-1088.
For product information, adverse event reports, and product complaint reports, please contact:
Salix Product Information Call Center
Please see complete Prescribing Information for XIFAXAN 550 mg.
Reference: 1. XIFAXAN [prescribing information]. Raleigh, NC: Salix Pharmaceuticals, Inc; 2011.
The information contained on this page is intended for US residents, healthcare providers, and pharmacists only.