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In the US, Darifenacin (darifenacin systemic) is a member of the drug class urinary antispasmodics and is used to treat Overactive Bladder and Urinary Incontinence.

US matches:



ATC (Anatomical Therapeutic Chemical Classification)


CAS registry number (Chemical Abstracts Service)


Chemical Formula


Molecular Weight


Therapeutic Categories

Spasmolytic agent

Muscarinic receptor antagonist (anticholinergic, parasympatholytic agent)


Chemical Names

(S)-1-[2-(2,3-dihydro-5-benzofuranyl)etyl]-α,α-diphenyl-3-pyrrolidineacetamide (WHO)

(S)-1-[2-(2,3-Dihydrobenzofuran-5-yl)etyl]-Õ,α-diphenylpyrrolidin-3-acetamid (IUPAC)

(S)-2-{1-[2-(2,3-Dihydrobenzo[b]furan-5-yl)etyl]pyrrolidin-3-yl}-2,2-diphenylacetamide (BAN)

Foreign Names

  • Darifenacinum (Latin)
  • Darifenacin (German)
  • Darifénacine (French)
  • Darifenacina (Spanish)

Generic Names

  • Darifenacin (OS: BAN, USAN)
  • Dasifenacin (IS)
  • UK 88525 (IS: Pfizer)
  • Darifenacin Hydrobromide (OS: BANM, USAN, JAN)
  • UK 88525-04 (IS: Pfizer)

Brand Names

  • Darifen-ER
    Acme, Bangladesh
  • Emselex
    Merus, Portugal; Merus Labs, Norway; Novartis Europharm, Cyprus
  • Enablex
    Novartis, Ecuador; Pharmacare, South Africa
  • Oralafi
    Gynopharm, Chile
  • Xelena
    Dr. Reddy's, India
  • Continex
    Baliarda, Argentina
  • Darisec
    Elea, Argentina
  • Emselex
    Aspen Labs, Mexico; Bayer Vital, Germany; Merus, Denmark; Merus Labs, United Kingdom; Merus Labs, Iceland; Merus Labs Luxco, Belgium; Merus Labs., Croatia (Hrvatska); Merz Pharma, Switzerland; Novartis, Czech Republic; Novartis, Hungary; Novartis, Lithuania; Novartis, Poland; Novartis, Serbia; Novartis, Turkey; POA Pharma, Finland; POA Pharma, Sweden
  • Enablex
    Aspen, Malaysia; Bagó, Argentina; Novartis, United States; Novartis Healthcare, Philippines; Novartis Pharmaceuticals, Australia; Novartis Pharmaceuticals, Canada; Warner Chilcott, United States
  • Esmelex
    Merus Labs, Greece


BANBritish Approved Name
BANMBritish Approved Name (Modified)
IUPACInternational Union of Pure and Applied Chemistry
ISInofficial Synonym
JANJapanese Accepted Name
OSOfficial Synonym
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

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