Active ingredient
Rifaximin
4 finished FDA listings contain Rifaximin as their only active ingredient.
FDA NDC Directory
- Ingredient names as written by FDA
- RIFAXIMIN
- Dosage forms
- Tablet
- Routes
- Oral
- Manufacturers / labelers
- 3
- Strengths listed
- 200 mg/1 · 550 mg/1
- Brand names in FDA listings
- Xifaxan
RxNorm (National Library of Medicine)
Ingredient concept RxCUI 35619
Drugs@FDA applications
Linked only where the FDA listing’s application number matches Drugs@FDA exactly. A listing in the NDC Directory does not by itself mean FDA approval.
| Application | Sponsor | Original approval | Listings |
|---|---|---|---|
| NDA 021361 | SALIX PHARMS | 2004-05-25 | 4 |
Official labeling on DailyMed
- XIFAXAN (RIFAXIMIN) TABLET [SALIX PHARMACEUTICALS, INC.] · version 50 · 2026-01-07
- XIFAXAN (RIFAXIMIN) TABLET [CARDINAL HEALTH 107, LLC] · version 14 · 2025-09-05
- XIFAXAN (RIFAXIMIN) TABLET [A-S MEDICATION SOLUTIONS] · version 8 · 2023-02-08
Sources: FDA NDC Directory (2026-09-29), RxNorm, Drugs@FDA, DailyMed. Each source’s facts are shown separately as published.