Below are the main rubriks (i.e strongest indications or symptoms) of Acid Phos in traditional homeopathic usage, not approved by the FDA.
Tearing pains in joints, bones, and periosteum
Cramps in upper arms and wrists
Pains at night, As if bones were scraped
Stumbles easily and makes missteps
Itching, between fingers or in folds of joints.≡ more ...