[The chemistry of antacids].

Antacids are relative simply assembled salts and salt-like compounds which neutralize acids. This neutralization reactions lead to several products (other salts, water, and possibly carbondioxid), resulting in steps, like hydrolysis and precipitations of insoluble compounds. When antacids containing aluminum are neutralized in the presence of organic acids, peptones, and polypeptides, there is a marked loss in their neutralizing capacity and neutralization rate.