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In the US, Alfentanil (alfentanil systemic) is a member of the drug class narcotic analgesics and is used to treat Anesthesia and Pain.

US matches:

UK matches:



ATC (Anatomical Therapeutic Chemical Classification)


CAS registry number (Chemical Abstracts Service)


Chemical Formula


Molecular Weight


Therapeutic Category

Opioid analgesic

Chemical Name

N-[1-[2-(4-ethyl-5-oxo-2-tetrazolin-1-yl)ethyl]-4-(methoxymethyl)-4-piperidinyl]propionanilide (WHO)

Foreign Names

  • Alfentanilum (Latin)
  • Alfentanil (German)
  • Alfentanil (French)
  • Alfentanilo (Spanish)

Generic Names

  • Alfentanil (OS: BAN, DCF)
  • Alfentanil Hydrochloride (OS: USAN, BANM)
  • R 39209 (IS)
  • Alfentanil (chlorhydrate d') (PH: Ph. Eur. 7)
  • Alfentanil hydrochlorid (PH: Ph. Eur. 7)
  • Alfentanil Hydrochloride (PH: BP 2011)
  • Alfentanil hydrochloride (PH: Ph. Eur. 7)
  • Alfentanili hydrochloridum (PH: Ph. Eur. 7)

Brand Names

  • Rapifen
    Janssen, Hong Kong; Janssen, Luxembourg; Janssen, Taiwan; Janssen-Cilag, Tunisia
  • Alfast
    Cristália, Brazil
  • Alfenta
    Akorn, United States; Janssen-Ortho Inc., Canada
  • Alfentanil Sandoz
    Sandoz, Canada
  • Alfentanil
    Hameln, United Kingdom; Hospira, United States
  • Alfentanil-hameln
    Hameln, Germany
  • Fentalim
    Angelini, Italy
  • Limifen
    Janssen-cilag, Spain
  • Rapifen
    AstraZeneca, Australia; IFET, Greece; Janssen, Belgium; Janssen, Brazil; Janssen, Netherlands; Janssen, Norway; Janssen, New Zealand; Janssen, Serbia; Janssen, Venezuela; Janssen-Cilag, United Arab Emirates; Janssen-Cilag, Austria; Janssen-Cilag, Bahrain; Janssen-Cilag, Switzerland; Janssen-Cilag, Chile; Janssen-Cilag, Czech Republic; Janssen-Cilag, Germany; Janssen-Cilag, Denmark; Janssen-Cilag, Egypt; Janssen-Cilag, Finland; Janssen-Cilag, France; Janssen-Cilag, United Kingdom; Janssen-Cilag, Iraq; Janssen-Cilag, Iran; Janssen-Cilag, Jordan; Janssen-Cilag, Kuwait; Janssen-Cilag, Lebanon; Janssen-Cilag, Portugal; Janssen-Cilag, Qatar; Janssen-Cilag, Saudi Arabia; Janssen-Cilag, Singapore; Janssen-Cilag, Syria; Janssen-Cilag, Turkey; Janssen-Cilag, Yemen; Janssen-Cilag, South Africa

International Drug Name Search


BANBritish Approved Name
BANMBritish Approved Name (Modified)
DCFDénomination Commune Française
ISInofficial Synonym
OSOfficial Synonym
PHPharmacopoeia Name
Rec.INNRecommended International Nonproprietary Name (World Health Organization)
USANUnited States Adopted Name
WHOWorld 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.