Where are data concerning this remedy found ? In Boericke and Dewey's Twelve Tissue Remedies of Schüssler . What is the general physiological action of the Phosphate of soda ? It corresponds to an acid condition of the system as shown by the dyspepsia and diarrhoea, and is useful in many digestive ailments, marasmus, etc. Give the stomach symptoms of this drug and indications as given by Schüssler. Great acidity, sour risings, vomiting of sour fluids with pain in the stomach and great flatulence. The sourness is the characteristic of the drug. What is the indication of the tongue ? It has a thick, yellow coating on the back part. What is the diarrhoea of Natrum phosphoricum ? It is a diarrhoea from excess of acidity. The stools are sour smelling, greenish, full of mucus, and excoriating as they pass. In what intestinal condition is Natrum phosphoricum indicated ? In intestinal worms, either long or thread worms, with symptoms of acidity, picking at the nose, squinting and twitching of the facial muscles.