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Nalidixic Acid

In the US, Nalidixic Acid is a member of the following drug classes: quinolones, urinary anti-infectives and is used to treat Bladder Infection and Prevention of Bladder infection.

UK matches:



ATC (Anatomical Therapeutic Chemical Classification)


CAS registry number (Chemical Abstracts Service)


Chemical Formula


Molecular Weight


Therapeutic Category

Antibacterial: Quinolone

Chemical Name

1,8-Naphtyridine-3-carboxylic acid, 1-etyl-1,4-dihydro-7-metyl-4-oxo-

Foreign Names

  • Acidum Nalidixicum (Latin)
  • Nalidixinsäure (German)
  • Acide nalidixique (French)
  • Acido nalidixico (Spanish)

Generic Names

  • Acide nalidixique (OS: DCF)
  • Nalidixic Acid (OS: BAN, USAN, JAN)
  • Win 18320 (IS)
  • Acidum nalidixicum (PH: Ph. Eur. 8)
  • Nalidixic Acid (PH: BP 2016, JP XVI, USP 38)
  • Nalidixic acid (PH: Ph. Eur. 8)
  • Nalidixinsäure (PH: Ph. Eur. 8)
  • Nalidixique (acide) (PH: Ph. Eur. 8)

Brand Names


BANBritish Approved Name
DCFDénomination Commune Française
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.