For relief from symptoms associated with inflammation, onset of fever, sore throat and immune support. Contains: Ferr Phos & Kali Mur. Tissue Salts Combinations Combined formulations of Tissue Salts were unknown in Schuessler's day. Over the years, however, the convenience and effectiveness of the combined formulations of Tissue Salts have come to be recognised. These remedies have been specially formulated for use in certain groups of ailments, and are the result of many years of clinical experience.