This remedy is made from phosphoric acid, whose chief action is on the nervous system. Too much phosphoric acid can cause gastroenteritis.
Phosphoric ac. has most affinity with children or young people who are growing fast and becoming thin and gangly. It is also indicated in people whose constitution, originally strong, has been undermined by a particularly virulent illness, by excessive loss of body fluids, or by grief or depression. Most Phosphoric ac. types have a mild, yielding temperament.