Magaldrate (Al5Mg10(OH)31(SO4)2,xH20) is a basic aluminium and magnesium compound possessing a layer structure connected by water and sulphate bridges. It is crystalline by nature. This unique crystal lattice structure results in its high reactivity. The antacid effectiveness of magaldrate can be used to treat peptic ulcers because it neutralizes gastric acid very quickly while buffering the pH (keeping it between 5 and 6) even in the presence of proteins and pepsin.

Barcroft ™ Aluminium Hydroxide Gel Visco-9 has a fine and narrow particle size distribution resulting in a pleasant mouthfeel. Viscous pastes yield thick and creamy formulations without the need for additional thickeners or suspending agents. Viscous aluminium hydroxide products are typically used in regular strength antacid suspensions. The products provide the appropriate thickness without requiring the use of gums or suspending agents. These gels can be dumped from drums with suitable equipment or pumped from the drum with specially designed pumps.