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In some countries, this medicine may only be approved for veterinary use.

CAS registry number (Chemical Abstracts Service)


Therapeutic Categories

Pharmaceutic aid


Astringent agent

Antidiarrheal agent: Intestinal adsorbent

Protectant of gastrointestinal mucosa

Chemical Name

Fine-grained, hydrous, phyllosilicate (or layer silicate) with a 2:1 arrangement of tetrahedral and octahedral sheet silicates. The latter further classified according to the structure of the octahedral sheet (dioctahedral or trioctahedral smectite).The basic units being composed of silicon-oxygen (tetrahedral sheet), the octahedral one is composed of aluminium or magnesium with oxygen from the tetrahedral sheet and with hydroxyl.

Foreign Names

  • Smektite (German)
  • Smectites (French)
  • Smectitas (Spanish)

Generic Names

  • Bentonite (OS: JAN)
  • Aluminum Silicate Hydrate with Silicon Dioxide (IS)
  • Bentonite (OS: JAN, DCF)
  • Aluminium silicate hydrate (IS)
  • Aluminiumsilicat-4 (IS)
  • CCRIS 3663 (IS)
  • E558 (IS)
  • Mineral soap (IS)
  • Pigment white 19 (IS)
  • Soap clay (IS)
  • Wilkinite (IS)
  • Bentonite (PH: BP 2018, JP XVII, NF 33, Ph. Eur. 9, Ph. Int. 7)
  • Bentonitum (PH: Ph. Eur. 9)
  • Diosmectite (OS: DCF)
  • Dioctahedral smectite (IS)
  • phyllitous silicate (IS)
  • Alabama Blue Clay (IS)
  • AMS (mineral) (IS)
  • Arcillite (IS)
  • Benclay MK 101 (IS)
  • Bentolite L3 (IS)
  • Hydrated sodium calcium aluminium magnesium silicate hydroxide (IS)
  • K 10 (clay) (IS)
  • KM 1 (mineral) (IS)
  • Montmorillonite K 10 (IS)
  • Montmorillonite KSF (IS)

Brand Names


DCFDénomination Commune Française
ISInofficial Synonym
JANJapanese Accepted Name
OSOfficial Synonym
PHPharmacopoeia 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.