ATC Group: A07B Intestinal adsorbents

The World Health Organization's ATC classification organizes medical drugs based on therapeutic properties, chemical composition, and anatomy. It helps make essential medicines readily available globally and is widely used in the pharmaceutical industry.

Position of A07B in the ATC hierarchy

Level Code Title
1 A Alimentary tract and metabolism
2 A07 Antidiarrheals, intestinal antiinflammatory/antiinfective agents
3 A07B Intestinal adsorbents

Group A07B contents

Code Title
A07BA Charcoal preparations
A07BB Bismuth preparations
A07BC Other intestinal adsorbents

Active ingredients in A07B

Active Ingredient Description

Attapulgite is a magnesium aluminium phyllosilicate which occurs in a type of clay soil common to the Southeastern United States. It physically binds to acids and toxic substances in the stomach and digestive tract. For that reason, it has often been used in antidiarrheal medications.

Bismuth subgallate
Charcoal activated

Activated charcoal is a form of carbon processed to have small, low-volume pores that increase the surface area available for adsorption or chemical reactions.


Diosmectite is a natural aluminomagnesium silicate clay with a lamellar, non-fibrous crystalline structure that gives it strong adsorbent properties. Diosmectite has demonstrated efficacy in the treatment of acute watery diarrhoea in children.


Pectin is a structural acidic heteropolysaccharide contained in the primary and middle lamella cell walls of terrestrial plants. The characteristic structure of pectin is a linear chain of alpha(1-4)linked D-galacturonic acid that forms the pectin-backbone, a homogalacturonan.

Related product monographs

Title Information Source Document Type  
CARBOMIX Granules Medicines & Healthcare Products Regulatory Agency (GB) MPI, EU: SmPC