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Pirenoxine (International)



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 XVII)

Brand Names

  • Catalin
    Senju, China; Takeda, Egypt
  • Catalin 0.005%
    Senju Seiyaku, Japan
  • Catalin K 0.005%
    Senju Seiyaku, Japan
  • Clarvisan
    Allergan, Italy; Lusomedicamenta, Portugal
  • Kary Uni
    Ferron/Santen, Indonesia; Santen, Philippines; Santen, Thailand; Santen, Taiwan; Santen Pharmaceutical Asia, Singapore; Santen Pharmaceutical China, China
  • Kary Uni 0.005%
    Santen Pharmaceutical, Japan
  • Pirenoxine 0.005%
    Nitto Medic, Japan
  • Pirenoxine Nitto Medic
    Nitto, Taiwan
  • Catalin
    Allergan, India; Helix, Pakistan; PharmaHeads, Poland; Takeda, Hong Kong
  • Catalin [+ Taurine]
    Takeda, Kuwait
  • Clarvisol
    Allergan, Brazil
  • Kary Uni
    Santen, Hong Kong
  • Pirenoxine Sodium - KeRui Pharm
    Kerui Pharmaceutical, China
  • Pirfalin
    Farmigea, Italy; Farmigea, Malta


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