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ATC (Anatomical Therapeutic Chemical Classification)


CAS registry number (Chemical Abstracts Service)


Chemical Formula


Molecular Weight


Therapeutic Categories

Antiallergic agent

Histamine H₁-receptor antagonist (H₁-antihistaminic)

Chemical Name


Foreign Names

  • Epinastinum (Latin)
  • Epinastin (German)
  • Epinastine (French)
  • Epinastina (Spanish)

Generic Names

  • Epinastine (OS: BAN)
  • Epinastine Hydrochloride (OS: JAN, BANM)
  • WAL 801 Cl (Boehringer Ingelheim) (IS)
  • Epinastine (chlorhydrate d') (PH: Ph. Eur. 9)
  • Epinastine Hydrochloride (PH: BP 2018)
  • Epinastine hydrochloride (PH: Ph. Eur. 9)
  • Epinastinhydrochlorid (PH: Ph. Eur. 9)
  • Epinastini hydrochloridum (PH: Ph. Eur. 9)

Brand Names

  • Enastin
    Dispert, Uruguay
  • Epioftal
    Atlas, Peru
  • Optest
    Sigmatec, Egypt
  • Relestat
    Allergan, Egypt; Allergan, India; Allergan, Lebanon
  • Alesion
    Boehringer Ingelheim, China; Nippon Boehringer Ingelheim, Japan
  • Alesion 0.05%
    Santen Pharmaceutical, Japan
  • Alesion 1%
    Nippon Boehringer Ingelheim, Japan
  • Alket
    Poen, Argentina
  • Alpeed
    Daito, Japan
  • Atergit
    Roemmers, Ecuador; Roemmers, Peru
  • Azusaleon
    Shiono Kemikaru, Japan
  • Elestat
    Allergan, Mexico; Allergan, United States
  • Epinastine
    Kotobuki Seiyaku, Japan
  • Epinastine Hydrochloride
    Akorn Animal Health, United States; Apotex, United States; Breckenridge Pharmaceutical, United States; CHO Shinyaku, Japan; Choseido Pharmaceutical, Japan; Kyorin Rimedio, Japan; Kyowa Yakuhin, Japan; Nichi-Iko Pharmaceutical, Japan; Nihon Yakuhin Kogyo, Japan; Nisshin Pharmaceutical, Japan; Pfizer Japan, Japan; Sandoz, United States; Sawai Seiyaku, Japan; Somerset, United States; Sun Pharma, United States; Takeda Teva Pharma, Japan; Tatsumi Yakuhin, Japan; Towa Yakuhin, Japan; Yoshindo, Japan
  • Epinastine Hydrochloride 0.2%
    Takeda Teva Pharma, Japan
  • Epinastine Hydrochloride DS 1%
    Nichi-Iko Pharmaceutical, Japan; Sawai Seiyaku, Japan; Towa Yakuhin, Japan
  • Epioftal
    Atlas Farmc., Argentina
  • Flurinol
    Boehringer Ing., Paraguay; Boehringer Ingelheim, Chile; Boehringer Ingelheim, Costa Rica; Boehringer Ingelheim, Dominican Republic; Boehringer Ingelheim, Guatemala; Boehringer Ingelheim, Honduras; Boehringer Ingelheim, Mexico; Boehringer Ingelheim, Nicaragua; Boehringer Ingelheim, Panama; Boehringer Ingelheim, El Salvador; Boehringer Ingelheim, Uruguay; Boehringer Ingelheim, Venezuela
  • Flurinol D [+ Pseudoephedrine]
    Boehringer Ing., Paraguay; Boehringer Ingelheim, Mexico
  • Histapin
    Haymann, Uruguay
  • Kai lai Zhi
    Carelife Pharmaceutical Co Ltd, China
  • Optallerg
    Verisfield, Greece
  • Pinasion
    Takeda Teva Pharma, Japan
  • Purivist
    Allergan, Czech Republic; Allergan, France; Allergan, Slovakia
  • Relestat
    Allergan, Argentina; Allergan, Belgium; Allergan, Brazil; Allergan, Colombia; Allergan, Spain; Allergan, United Kingdom; Allergan, Hong Kong; Allergan, Ireland; Allergan, Italy; Allergan, Malaysia; Allergan, Netherlands; Allergan, Portugal; Allergan, Sweden; Allergan, Thailand; Allergan, Turkey; Allergan, Taiwan; Allergan, South Africa; Allergan Israel, Israel; Allergan Pharmaceuticals, Poland; Allergan Pharmaceuticals Ltd, Greece; Allergan Singapore, Singapore; Allergan Singapore, Vietnam; Laboratorios Allergan, Chile
  • Relestat 0.5mg/ml
    Allergan, Hungary; Allergan, Luxembourg; Allergan Pharmaceuticals, Germany; Allergan Pharmaceuticals Ireland, Austria
  • Talerc
    Aché, Brazil
  • Yupitel
    Iwaki Seiyaku, Japan


BANBritish Approved Name
BANMBritish Approved Name (Modified)
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

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