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

In the US, Cysteine (cysteine systemic) is a member of the drug class intravenous nutritional products.

US matches:



CAS registry number (Chemical Abstracts Service)


Chemical Formula


Molecular Weight


Therapeutic Categories

Food additive (e number)

Amino acid

Cataract treatment

Chemical Name

L-Cysteine (WHO)

Foreign Names

  • Cysteinum (Latin)
  • Cystein (German)
  • Cystéine (French)
  • Cisteina (Spanish)

Generic Names

Brand Names

  • Aivital (Cysteine and Ascorbic Acid)
    Patron, Taiwan
  • Broen C (Cysteine and Bromelains)
    Nang Kuang, Taiwan
  • Crystfan (Cysteine and Ascorbic Acid)
    Nisshin Pharmaceutical, Japan
  • Cystina
    Galpharma, Tunisia
  • Cystine/Vitamine B6 Biogaran (Cysteine and Pyridoxine)
    Biogaran, France
  • Ecolan
    Sanwa Kagaku, Japan
  • Hythiol
    Hisamitsu Seiyaku, Japan
  • Hythiol 32%
    Hisamitsu Seiyaku, Japan
  • Lobamine-Cystéine (Cysteine and Methionine)
    Pierre Fabre, Vietnam
  • Pantogar (Cysteine and Calcium Pantothenate)
    Merz Consumer Care Austria, Austria
  • Parematil (Cysteine and Chlorphenamine (veterinary use))
    Omega Pharma France vet., France
  • Lobamine-Cystéine (Cysteine and Methionine)
    Pierre Fabre Dermatologie, France


DCFDénomination Commune Française
ISInofficial Synonym
JANJapanese Accepted Name
OSOfficial Synonym
PHPharmacopoeia Name
Rec.INNRecommended International Nonproprietary Name (World Health Organization)
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.