Skip to main content


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

In the US, Niclosamide (niclosamide systemic) is a member of the drug class anthelmintics and is used to treat Fish Tapeworm Infection.

US matches:



ATC (Anatomical Therapeutic Chemical Classification)


CAS registry number (Chemical Abstracts Service)


Chemical Formula


Molecular Weight


Therapeutic Category

Anthelmintic agent

Chemical Names

2',5-dichloro-4'-nitrosalicylanilide (WHO)

5-Chloro-N-(2-chloro-4-nitrophenyl)-2-hydroxybenzamide (Ph. Eur.)

Foreign Names

  • Niclosamidum (Latin)
  • Niclosamid (German)
  • Niclosamide (French)
  • Niclosamida (Spanish)

Generic Names

  • Niclosamide (OS: BAN, USAN, DCIT, DCF)
  • RP 10768 (IS)
  • Niclosamid, wasserfreies (PH: Ph. Eur. 9)
  • Niclosamide (PH: BP 2018, Ph. Int. 7)
  • Niclosamide anhydre (PH: Ph. Eur. 9)
  • Niclosamide, Anhydrous (PH: BP 2016)
  • Niclosamide, anhydrous (PH: Ph. Eur. 9)
  • Niclosamidum (PH: Ph. Int. 7)
  • Niclosamidum anhydricum (PH: Ph. Eur. 9)

Brand Names

  • Ascatene [+ Pyrantel] [veterinary use]
    Auvex, France
  • Atenas [+ Levamisole] [veterinary use]
    Fatro, Italy
  • Atenase
    UCI-Farma, Brazil
  • CB-99
    Charoen Bhaesaj Lab, Thailand
  • Ex-A-Lint [veterinary use]
    Intervet SA MSD, South Africa
  • Felex [+ Pyrantel] [veterinary use]
    Pfizer Italia, Italy
  • Fido's Closasole [+ Levamisole] for Dogs & Cats [veterinary use]
    Mavlab, Australia
  • Gelminthe [+ Levamisole] [veterinary use]
    Omega Pharma France vet., France
  • Lintex-L [veterinary use]
    Bayer AH, South Africa
  • Manoverm
    March Pharma, Thailand
  • Mesan
    Shaigan, Pakistan
  • Niclosan
    GlaxoSmithKline, India; Misr, Egypt
  • No Worm CLN voor honden [+ Levamisole] [veterinary use]
    Bridgefarma, Netherlands
  • No Worm FLN [+ Levamisole] [veterinary use]
    Bridgefarma, Netherlands
  • No Worm Pasta [+ Oxibendazole] [veterinary use]
    Bridgefarma, Netherlands
  • Pet Star Wormmiddel voor honden [+ Piperazine] [veterinary use]
    Aafarma, Netherlands
  • Pet Star Wormmiddel voor katten [+ Piperazine] [veterinary use]
    Aafarma, Netherlands
  • Polyverpat [+ Pyrantel] [veterinary use]
    Omega Pharma France vet., France
  • Stromiten [+ Levamisole] [veterinary use]
    Vetoquinol, France
  • Taeniasan
    Mephico, Lebanon
  • Teniadex
    Pharmadex, Lebanon
  • Teniverm 0.5 [+ Levamisole] [veterinary use]
    Laboratoires Biové, France
  • Teniverm 3.0 [+ Levamisole] [veterinary use]
    Laboratoires Biové, France
  • Totaal Wormmiddel (Kat) [+ Piperazine] [veterinary use]
    Beaphar, Netherlands
  • Totaal Wormmiddel (kleine Hond) [+ Piperazine] [veterinary use]
    Beaphar, Netherlands
  • Tredemine
    IFET, Greece
  • Trédémine
    Sanofi-Aventis, France
  • Vermifuge Clément Chats [+ Levamisole] [veterinary use]
    Omega Pharma France vet., France
  • Verminil CLN [+ Levamisole] [veterinary use]
    Emax Nederland, Netherlands
  • Verminil FLN [+ Levamisole] [veterinary use]
    Emax Nederland, Netherlands
  • Vetminth 24g + 3g/100ml dla psow i kotow [+ Oxibendazole] For dogs and cats [veterinary use]
    Virbac, Poland
  • Vitaminthe [+ Oxibendazole] [veterinary use]
    Virbac, Estonia; Virbac, France; Virbac, Netherlands
  • Yomesan
    Alexandria Co., Egypt; Bayer, Belgium; Bayer, Italy; Bayer, Lebanon; Bayer, Netherlands; Bayer, Sweden; Bayer, Turkey; Bayer Pharmaceuticals, Kuwait; Bayer Schering, South Africa; Bayer Vital, Germany
  • Yomesan 500mg
    Bayer, Luxembourg


BANBritish Approved Name
DCFDénomination Commune Française
DCITDenominazione Comune Italiana
ISInofficial Synonym
OSOfficial Synonym
PHPharmacopoeia Name
Ph. Eur.European Pharmacopoeia
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.