This section is from the book "Materia Medica And Therapeutics Inorganic Substances", by Charles D. F. Phillips. Also available from Amazon: Materia medica and therapeutics.
In cases where flatulence with acidity are marked symptoms, ammonia will relieve by its alkalinity and by stimulating the stomach to contract and expel flatus; it is usefully combined with other remedies - the carbonate or aromatic spirit with soda or bitters. The chloride with hydrochloric acid relieves in some cases when the tongue is furred and the biliary secretion deficient (British Medical Journal, i., 1875). For gastric and intestinal catarrh also, it is commonly given in Germany - not so in England.