Any drug used to combat oesophageal reflux[?]. Commonly, following ingestion a 'raft' of alginic acid is created, floating on the stomach contents by carbon dioxide released by the drug. This forms a mechanical barrier to further reflux. Some preparations also contain antacids to protect the oesophagus.
... which 42.9% have children under the age of 18 living with them, 68.0% are married couples living together, 10.0% have a female householder with no husband present, and 18.5% ...