A burning sensation experienced over the front of the chest and up the back to the throat which has nothing to do with the heart. It is caused by REFLUX of gastric juice into the oesophagus often aggravated by dietary indiscretions – and is relieved temporarily by taking alkaline substances, such as bicarbonate of soda, commercial preparations such as aluminium-containing antacid tablets or prescribed drugs such as lansoprazole. The frequency of heartburn attacks can be lessened by eating a sensible diet and restricting alcohol consumption.

Persistent heartburn may be a sign of more serious oesophageal disease and medical advice should be sought (see also GASTRO-OESOPHAGEAL REFLUX).