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Potassium Hydrogen Tartrate


Ph. Eur.

ATC (Anatomical Therapeutic Chemical Classification)


CAS registry number (Chemical Abstracts Service)


Chemical Formula


Molecular Weight


Therapeutic Categories

Pharmaceutic aid

Laxative, osmotically acting

Treatment of potassium deficiency

Chemical Names

Butanedioic acid 2,3-dihydroxy-, [R-(R*,R*)]-, monopotaβium salt (USAN, USP)

Potaβium hydrogen (2R,3R)-2,3-dihydroxybutane-1,4-dioate (Ph. Eur., BP)

Foreign Names

  • Kalii hydrogenotartras (Latin)
  • Kaliumhydrogentartrat (German)
  • Potassium, hydrogénotartrate de (French)
  • Tartrato ácido de potasio (Spanish)

Generic Names

  • Potassium Bitartrate (OS: USAN)
  • Potassium Hydrogen Tartrate (OS: JAN)
  • E 336 (IS)
  • Kalium hydrotartaricum (IS)
  • Potassium Acid Tartrate (IS)
  • Tartarus depuratus (IS)
  • Weinstein (IS)
  • Kalii hydrogenotartras (PH: Ph. Eur. 9)
  • Potassium Bitartrate (PH: USP 41)
  • Potassium hydrogen tartrate (PH: Ph. Eur. 9)
  • Potassium Hydrogen Tartrate (PH: BP 2018)

Brand Names

  • Eductyl [+ Sodium Bicarbonate]
    Techni-Pharma, France; Techni-Pharma, Monaco
  • Lecicarbon [+ Sodium Bicarbonate]
    Brady, Austria
  • Nati-K
    DB, France


ISInofficial Synonym
JANJapanese Accepted Name
OSOfficial Synonym
PHPharmacopoeia Name
Ph. Eur.European Pharmacopoeia
USANUnited States Adopted Name

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

Always consult your healthcare provider to ensure the information displayed on this page applies to your personal circumstances.