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CAS registry number (Chemical Abstracts Service)


Chemical Formula


Molecular Weight


Therapeutic Category

Cataract treatment

Chemical Name

5H-Pyrido[3,2-a]phenoxazine-3-carboxylic acid, 1-hydroxy-5-oxo-

Foreign Names

  • Pirenoxinum (Latin)
  • Pirenoxin (German)
  • Pirénoxine (French)
  • Pirenoxina (Spanish)

Generic Names

  • Pirenoxine (OS: JAN)
  • Pirénoxine (OS: DCF)
  • Pirfenoxone (IS)
  • Pirenoxine (PH: JP XVI)

Brand Names

  • Catalin
    Senju, China; Senju Seiyaku, Japan; Takeda, Hong Kong; Takeda, Thailand
  • Catalin G
    Refasa, Peru
  • Catalin K
    Senju Seiyaku, Japan
  • Clarvisan
    Seber, Portugal
  • Kary Uni
    Ferron/Santen, Indonesia; Santen, China; Santen, Hong Kong; Santen, Philippines; Santen, Singapore; Santen, Thailand; Santen, Taiwan; Santen Pharmaceutical, Japan
  • Pirenoxine Nitto Medic
    Nitto, Taiwan; Nitto Medic, Japan
  • Catalin
    Allergan, India; Apex Pharma Indonesia PT, Indonesia; Senju, Poland; Takeda, Philippines; Vianex, Greece
  • Clarvisan
    Allergan, Italy; Tecnoquimicas, Colombia
  • Clarvisol
    Allergan, Brazil
  • Pirenoxine Sodium - KeRui Pharm
    Kerui Pharmaceutical, China
  • Pirfalin
    Farmigea, Italy; Farmigea, Malta

International Drug Name Search


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

Click for further information on drug naming conventions and 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.