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In some countries, this medicine may only be approved for veterinary use.

In the US, Rifaximin (rifaximin systemic) is a member of the drug class miscellaneous antibiotics and is used to treat Crohn's Disease, Diarrhea, Hepatic Encephalopathy, Irritable Bowel Syndrome and Traveler's Diarrhea.

US matches:

UK matches:



ATC (Anatomical Therapeutic Chemical Classification)


CAS registry number (Chemical Abstracts Service)


Chemical Formula


Molecular Weight


Therapeutic Category


Chemical Name

(2S,16Z,18E,20S,21S,22R,23R,24R,25S,26R,27S,28E)-5,6,21,23,25-Pentahydroxy-27-metoxy-2,4,11,16,20,22,24,26-octametyl-2,7-(epoxypentadeca[1,11,13]trienimino)benzofuro[4,5-e]pyrido[1,2-a]benzimidazole-1,15(2H)-dione, 25-acetate (WHO)

Foreign Names

  • Rifaximinum (Latin)
  • Rifaximin (German)
  • Rifaximine (French)
  • Rifaximina (Spanish)

Generic Names

  • Rifaximin (OS: USAN, BAN)
  • Rifaximina (OS: DCIT)
  • L 105 (IS)
  • Rifaxidine (IS)
  • Rifaximin (PH: BP 2016, Ph. Eur. 8)
  • Rifaximine (PH: Ph. Eur. 8)
  • Rifaximinum (PH: Ph. Eur. 8)

Brand Names

  • Alfa Normix
    Alfa Wassermann, Georgia; Alfa Wassermann, Russian Federation
  • Bang Yi
    Shenyang First Pharmaceutical Factory, China
  • Cefaximin-L (Rifaximin and Cefacetrile (veterinary use))
    Fatro, Italy
  • Colidimin
    Gebro Pharma, Austria
  • Colidur
    Deva Holding, Lebanon; Drogsan, Turkey
  • Coloximina
    Eurofarma, Argentina
  • Fatrox (veterinary use)
    Fatro, Belgium; Vetoquinol, France
  • Fatroximin (veterinary use)
    Fatro, Austria; Fatro, Israel; Fatro, Italy; Fatro, Poland
  • Flonorm
    Alfa Wassermann, Mexico; Zambon, Colombia
  • Fu Jie Ting
    Hailing, China
  • Fu Te
    Tonglian Pharmaceutical Co. Ltd., China
  • Gastrobiotic
    Andalous, Egypt
  • Hepaximin
    Aristopharma, Bangladesh; Aristopharma Ltd, Myanmar
  • Ifaxim
    Procaps, Colombia; Unimed, Peru
  • Ji Li Qing
    Kaiyuan Pharmaceutical, China
  • Jinxili
    Xincat, China
  • Lai Li Qing
    Lai Mei Pharm, China
  • Lormyx
    Alfa Wassermann, Israel; Faran Laboratories, Greece
  • Mai E Ke Si
    Mingxin Pharmaceutical, China
  • Mastorange (veterinary use)
    Ati, Italy
  • Normix
    Alfa Wassermann, Bulgaria; Alfa Wassermann, Czech Republic; Alfa Wassermann, Hungary; Alfa Wassermann, Italy; Alfa Wassermann, Lebanon; Alfa Wassermann, Romania; Alfa Wassermann, Slovakia; Alfa Wassermann, Tunisia; Hanall Biopharma, South Korea; Ilsan, Turkey; Laboratorios Andromaco, Chile
  • Ou Ke Shuang
    Baili Pharmaceutical, China
  • Qian Er Fen
    Yangzhou No. 3 Pharmaceutical, China
  • Refero
    Alfa Wassermann, Portugal
  • Ribolac
    Laboratorios Recalcine, Chile
  • Rifabac
    Garmisch, Colombia
  • Rifacol
    GrĂ¼nenthal Italia, Italy; Vianex, Greece
  • Rifadom
    Dominguez, Argentina
  • Rifagut
    Opsonin, Bangladesh
  • Rifamax
    Incepta, Bangladesh
  • Rifax
    Lafrancol, Colombia
  • Rixmin
    Cipla, India
  • Sa Fen
    Junan Bio Pharmaceutical, China
  • Spiraxin
    Bama-Geve, Spain; LENIS, Slovenia
  • Targaxan
    Norgine, Belgium; Norgine, Finland; Norgine, United Kingdom; Norgine, Ireland
  • Tixtar
    Alfa Wassermann Pharma, France
  • Tixteller
    Alfa Wassermann, Netherlands; Alfa Wassermann, Poland
  • Trencedia
    Marcyrl, Egypt
  • Xi Jie
    Sanye Pharm, China
  • Xifaxan
    Alfa Wassermann, Hong Kong; Alfa Wassermann, Poland; Alfa Wassermann, Portugal; CARSL, New Zealand; Medcor, Netherlands; Norgine, Australia; Norgine, Switzerland; Norgine, Germany; Norgine, Denmark; Norgine, Netherlands; Norgine, Norway; Norgine, Sweden; Salix, United States
  • Xifaxanta
    Norgine, United Kingdom
  • Xifushen
    Alfa Wassermann, China
  • Zi Jun
    Southwest, China


BANBritish Approved Name
DCITDenominazione Comune Italiana
ISInofficial Synonym
OSOfficial Synonym
PHPharmacopoeia Name
Rec.INNRecommended International Nonproprietary Name (World Health Organization)
USANUnited States Adopted Name
WHOWorld Health Organization

Further information on drug naming conventions: International Nonproprietary Names.

Important Notice: The international database is in BETA release. This means it is still under development and may contain inaccuracies. It is not intended as a substitute for the expertise and judgement of your physician, pharmacist or other healthcare professional. It should not be construed to indicate that the use of any medication in any country is safe, appropriate or effective for you. Consult with your healthcare professional before taking any medication.

Further information

Always consult your healthcare provider to ensure the information displayed on this page applies to your personal circumstances.