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ATC (Anatomical Therapeutic Chemical Classification)


CAS registry number (Chemical Abstracts Service)


Chemical Formula


Molecular Weight


Therapeutic Category

Beta-lactam antibacterial: Beta-lactamase resistant penicillin

Chemical Name


Foreign Names

  • Flucloxacillinum (Latin)
  • Flucloxacillin (German)
  • Flucloxacilline (French)
  • Flucloxacilina (Spanish)

Generic Names

  • Floxacillin (OS: USAN)
  • Flucloxacillin (OS: BAN)
  • Flucloxacillina (OS: DCIT)
  • Flucloxacilline (OS: DCF)
  • BRL 2039 (IS: Beecham)
  • FK 900 (IS)
  • Flucloxacillin Magnesium (OS: BANM)
  • Flucloxacillin hemimagensium-4-Wasser (IS)
  • Flucloxacillin magnesium octahydrate (PH: Ph. Eur. 8)
  • Flucloxacillin Magnesium Octahydrate (PH: BP 2016)
  • Flucloxacillinum magnesicum octahydricum (PH: Ph. Eur. 8)
  • Flucloxacillin Sodium (OS: BANM, JAN)
  • Flucloxacillin Sodium (PH: BP 2016)
  • Flucloxacillin sodium (PH: Ph. Eur. 8)
  • Flucloxacilline sodique (PH: Ph. Eur. 8)
  • Flucloxacillin-Natrium (PH: Ph. Eur. 8)
  • Flucloxacillinum natricum (PH: Ph. Eur. 8)

Brand Names


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

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.