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Phosphoricum Acidum - General symptoms - Hahnemann

Phosphoric Acid, Phos acid, Acid Phos, Phos ac, Phos-ac, Phosph-ac, Phos. ac, Acidum phosphoricum, Ph-ac.

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HPUS indication of Phosphoricum Acidum: Headache

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Below are the main rubriks (i.e strongest indications or symptoms) of Acid Phos in traditional homeopathic usage, not approved by the FDA.




It is best to take for the preparation of this medicine for homoeopathic use, one grain of Phosphoric acid melted and preserved dry in a well stoppered vessel. This acid may be gained directly from the Phosphorus phosphorus by applying Nitric Acid nitric acid, or, it may be gained from bones in the following manner, first practiced by myself Take a pound of calcined white bone, broken in pieces.

pour over this in a porcelain bowl one pound of the strongest Sulphuricum Acidum Sulphuric acid and stir the mixture around several times in 24 hours with a glass rod. The mash thus gained is then well-mixed and thinned with two pounds of strong whiskey or rum, the whole is then tied up in a linen bag and pressed out between two smooth boards weighed down with heavy weights. What remains in the bag may be again thinned with two pounds of strong whiskey, and what is pressed out may be mixed with the quantity first obtained.

it may then remain covered for a few days so that the turbid matter may settle down. The clear liquid is decanted and boiled down in a heated porcelain bowl and then melted at a red heat. The melted Phosphoric acid must be of crystalline clearness. While still warm, it is broken in pieces and preserved in a well-stoppered bottle, as it quickly and totally deliquesces in the open air into a thickish fluid of watery clearness. The dry acid may be used like other dry substances, being triturated with sugar of milk, in the manner described in the first part of this book up to the millionth powdered attenuation. One grain of this may then be dissolved and further potentized by succussion.

A too violent action of Phosphoric acid is modified by Camphora Camphor.

In cases where the properly potentized Phosphoric acid was indicated, it also cured at the same time the following ailments

Morning-headache intolerance of noise and talking.

scabs on the dorsum of the nose.

fetid odor from the nose.

burning in the cheeks.

pimples on the chin. pimples about the forehead and chin.

burning in the hypogastrium.

nocturnal micturition.

pain in the liver, during the menses.

roughness of the throat.

scraping on the larynx inciting to cough.

shortness of breath and inability to talk long at a time.

weakness of the chest from speaking.

eruption of pimples on the arms.

sweating of the feet. herpes.

corns. night-sweat.

Dr. Hering cured with it Incapacity for mental work with great discouragement, and indolence of mind and body.

heaviness of the head, as if it were full of water.

inflammation of the eyes with burning.

lachrymation. aversion to sunlight.

the teeth become yellow.

. after meals the stomach seems to rock up and down.

hawking up of viscid mucus.

gnawing pain in the testes.

hacking cough with expectoration of mucus, in the morning.

repeated stools. and in the axillae.

swelling on the natis.

swelling of the feet. the testes are sore to the touch.

itching of an ulcer. flat, painless ulcers on the leg without redness, with jagged, uneven fundus and dirty looking pus.

great weariness after waking.


The abbreviation of the names of my fellow-workers are ., ; ., ; ., ; ., ; ., ; ., ; ., ; ., ; ., ; ., ; ., ; ., .

In the (Vol. v.), where this pathogenesis first appears, it contains (in the second edition) 268 symptoms from Hahnemann himself and 411 from twelve fellow-observers. The present list is increased by 139 symptoms, most of which are credited to Hering, and were probably observed by him on the patients mentioned above as cured by him with the acid.


Violent, excessively severe pressive pain, as if in the surface of the brain and in the periosteum of that part of the skull on which he is then lying, after midnight on awaking.

aggravated so as to become unbearable, by remaining lying on the same side, and when he turns to another side, it begins there with the same fury, while ceasing in the former spot.

Short-sightedness, in sewing, reading and writing, it seems as if a gauze was before the eyes.

she does not recognize the letters.

but at a distance she sees everything clearly and distinctly.

when she looks away from her work for a moment, she can better distinguish things close by.

but the dimness quickly returns on reading, without pains of the eyes.

* * * * *

Frequent alternations of chills and heat, in the evening.

the dry heat of the face is without redness, attended with chill.

after the cessation of the heat a still more severe chill, it runs cold all over his body.

toward morning a profuse sweat during the night-sleep.

i. e., when he had gone to sleep again after awaking..