Article Text

Download PDFPDF
Hydrotalcite (altacite)


Hydrotalcite (Altacite - Roussel) is synthetic aluminium magnesium hydroxide carbonate hydrate which also occurs naturally as a crystalline mineral. It is promoted for the treatment of ‘acid-pepsin’ disease, that is peptic ulceration, gastritis, dyspepsia, hyperacidity and heartburn associated with reflux oesophagitis and hiatus hernia. It is claimed that hydrotalcite reduces pepsin activity by maintaining the pH of gastric contents at levels between 4 and 5 and by precipitating and adsorbing pepsin. In vitro it has a buffering effect between pH 3 and 5. Other aluminium-based antacids, e. g. aluminium hydroxide are also said to reduce pepsin activity, but whether hydrotalcite is more effective is not known.

Statistics from

Request Permissions

If you wish to reuse any or all of this article please use the link below which will take you to the Copyright Clearance Center’s RightsLink service. You will be able to get a quick price and instant permission to reuse the content in many different ways.