NDAORALTABLETPriority Review
Approved
Mar 2010
Lifecycle
LOE Approaching
Competitive Pressure
30/100
Clinical Trials
38
Data completeness
3/8 — Basic
Priority Review
Drug data last refreshed 3h ago · AI intelligence enriched 1w ago
AI summarySynthesized from FDA + DailyMed + ClinicalTrials.gov data
XIFAXAN (rifaximin) is an oral non-systemic antibiotic approved in 2010 for treating traveler's diarrhea caused by noninvasive strains of E. coli. It is a rifamycin-derivative antibiotic that acts locally in the gut with minimal systemic absorption. The drug has expanded indications beyond traveler's diarrhea into hepatic encephalopathy and irritable bowel syndrome with diarrhea (IBS-D).
$1.1BPart D
LOE ApproachingDeclining lifecycle phase with $1.1B in annual Part D spending signals a mature product with potential organizational restructuring and transition planning underway.
Mechanism of Action
Mechanism of action data is being enriched from DailyMed and FDA sources. Check back soon for updated drug intelligence.
Indications
Indication data is being enriched from DailyMed and FDA labeling. Check back soon for approved therapeutic uses.
Clinical Trials (38)
Rifaximin 200 mg Plus Oral Rehydration vs Oral Rehydration Alone in Children With Acute Diarrhea
Started Feb 2026
54 enrolled
DiarrheaGastroenteritisBacterial Infection
Rifaximin SSD in Dementia Trial
Started Dec 2024
20 enrolled
Dementia Alzheimer TypeDementia Associated With Cerebrovascular Disease
Rifaximin for the Secondary Prevention of Recurrent Pouchitis
Started Jul 2024
16 enrolled
Pouchitis
Evaluating the Effect Of Rifaximin on the Gut Microbiota and Metabolome in SIBO Using CapScan®
Started Feb 2024
34 enrolled
Small Intestinal Bacterial Overgrowth
Evaluation of Rifaximin SSD for Delaying Encephalopathy Decompensation in Patients With Cirrhosis
Started Aug 2022
466 enrolled
Hepatic Encephalopathy
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Data Sources
- Drug label: DailyMed / FDA
- Clinical trials: ClinicalTrials.gov
- Patent data: FDA Orange Book
- Spending data: CMS Medicare
The information on this page is for informational purposes only and should not be used as a substitute for professional medical advice. Drug information is sourced from FDA, DailyMed, and other government databases. Adverse event data from FAERS does not establish causation. Always consult a healthcare professional for medical decisions.