|Ferrum phos, [Ferr-p]|
|If brought on by cold or exposure,.|
|Magn phos. [Mag-p]|
|If pain is exceedingly sharp, lightning-like.|
|Kali phos. [Kali-p]|
|For dull, steady pain.|
Detail description of the tissue salt Sciatica biochemic remedy by E.P. Anshutz in his book A Guide to Twelve Tissue Remedies of Biochemistry, published in 1909.