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.
Phosphoric acid is suitable for cases of diarrhoea when an acid is indicated. Sedgwick strongly recommends it for choleraic cases, and argues for its use in true cholera (Lancet, ii., 1871, p. 280).
Acidum phosphoricum dilutum: dose, 10 to 30 min. freely diluted.
[Preparations, U. S. P. - Acidum phosphoricum dilutum, sp. gr. 1.056. Acidum phosphoricum glaciale - used in preparations.]