Phosphoricum acidum

Last modified on August 16th, 2018

Phosphoricum Acidum homeopathy medicine – drug proving symptoms from Encyclopedia of Pure Materia Medica by TF Allen, published in 1874. It has contributions from R Hughes, C Hering, C Dunham, and A Lippe.


Glacial phosphoric acid (Meta phosphoric acid, H2OP2O5 or HPO3).

Preparation: Triturations of the acid obtained by the method of Hahnemann.


Emotional. The sensation experienced on taking from 40 drops to 3 drachms were those of moderate alcoholic stimulation. There was slight pain through the frontal region, and a buoyancy and lightness of feeling rather agreeable. When larger doses were taken there was a feeling of drowsiness, an inclination to lie down, and an unwillingness to undertake mental labor. This continued for some hours. Lively vivacious mood (after twenty- four hours). Very lively and frequent quite let loose. Very lively and good-humored. He is beside himself, and hot from the slightest vexation. She dances, without consciousness, violently and wildly, for several days, without lying down, except at night. Internal uneasiness hindered him at work. Lachrymose, as from homesickness. Sad and solicitous concerning the future.

Sadness sand feeling of solicitude, as if she would be sick. Sad.

Sad, earnest, discouraged only when walking in the open air, the farther he walks the more it increases; in the house it gradually disappears, and he becomes more lively. Depression (after four days). Apprehension, as if the chest were too tight, with internal heat (after eight hours). Great anxiety; was obliged to lie down, in the afternoon (third day). Anxiety and restlessness throughout the whole body. He was constantly complaining about his illness. He looks very ill-humored and morose, so that every one asks him what the matter is, although he is not sick. Very ill-humored, weak, and sleepy, in the morning on rising. Very ill-humored, peevish, irritable. Discontented with himself, reproachful. Very irritable depressed mood, with physical prostration. Obstinate about everything. Easily vexed and easily gets into a passion. Quiet, indifferent, and much boring in the nose. Indifferent, restless. Intellectual. Hastiness in speech; he cannot do anything rapidly enough. When reading, a thousand different thoughts come to mind; he can understand nothing; what he reads is obscure, and everything is immediately forgotten, with difficult recollection of what he has known long time. He cannot get rid of an idea, and the thoughts connected with it do not come to him. He cannot find the right word when talking (after two hours). Loss of ideas and weakness of mind; on thinking he becomes dizzy. He cannot collect his thoughts in proper order. Indolent, dull, unbalanced mind, without fancy; disinclination for even agreeable mental work. He speaks unwillingly; talking is irksome. He speaks little, and answers questions unwillingly. Disinclination to talk. His intellect was affected. Disinclined to work. Constant fretfulness, with disinclination to talk. Almost complete loss of memory of the occurrences of the day (first day). Quiet fretfulness. He cannot he alone without losing his thoughts and becoming unconscious, in the morning.


Confusion and Vertigo. Confusion of the head, lasting three hours. Confusion of the head (after four days). Confused headache, on entering a warm room, in the evening. Vertigo; the head sinks forward and backward, immediately. Vertigo, in the morning, even to falling down, while standing. Vertigo, in the morning, in bed; on closing the eyes, it seems as though the feet rose and as if he were standing on his head. Vertigo, several mornings, on rising. Vertigo, towards evening, while standing and walking; he staggered as if intoxicated; several evenings.

Frequent vertigo, caused by heat in the head, even while sitting; he often nodded involuntarily while writing; things seemed to whirl around, the table to fall down, and while walking and standing he was in danger of falling forward, or was obliged to take a step in advance in order to steady himself. Vertigo and reeling, while walking (first day). Vertigo, on rising after sitting a long time. Vertigo, after reading. Vertigo, while sitting; constantly feared to fall. Vertigo, on stooping. Vertigo all day. General Head. Weakness of the head, in the morning, after rising, as if he would reel. Heaviness in the head. Great heaviness in the whole head, with violent pressure, extending to the left frontal eminence. Dulness in the head for two hours after eating. Dulness in the head during and after eating.

dulness in the head and limbs, as after intoxication or loss of sleep. Dulness of the whole head. Dulness of the head; inability to think. Dulness in the head, as after excessive coition, lasting three days, immediately. Head befogged, in the forenoon, as from loss of sleep or as after night-watching. Dull headache, with tingling in the head; on coughing, pain as if the head would burst. Extremely violent pressure in the head, in the afternoon.

Violent, extremely hard pressive pain as if on the surface of the brain and in the periosteum of the portion of the skull upon which he was just lying, on waking after midnight; on continuing to lie upon the part, the pain became intolerable; on lying on another place, it there began with equal violence, but disappeared in the former place. Pressure in the head, and a bitter taste in the mouth, in the morning (fifth day). Pressure in the brain, behind the left ear. Pressure, as from a weight in the head, from above downward, or as if the upper part of the head had been beaten. Pressure in the head, especially on ascending steps.

Pinching pressure and tearing here and there in the brain.

Pressive and sticking pain in all parts of the head, at intervals. Headache, as if the brain were pressed upward, with painful pulsating throbbing in it. Pressive headache, with weakness, heaviness, and nausea, from reading a short time (second day). Constant headache. Violent headache, obliging him to lie down, with stiffness of the nape of the neck. Headache, caused by the slightest jar, or excessively aggravated by noise.

Headache, as after lifting, like a heaviness. Burning headache in the upper part of the brain. Headache, immediately on waking, in the morning, disappearing on rising. Prickling headache, in the morning, on rising, lasting till noon. Roaring in the head.

Painful shattering in the head, while walking. Hacking, as with a hatchet, in the head. (* Cured by Staphis.-HERING. *) Jerking through the head, from behind forward, at pulsating, rhythmical intervals. Jerking in the head. Boring in the head, as if a hole would be bored through the skull, especially on the vertex. Some beatings, as with a hammer, in the head. Pain in the whole brain, as if it were compressed. Forehead. Violent pressure in the forehead, in the morning, on waking, so that she was quite stupid and could not open the eyes; the pains scarcely permitted her to talk, and were aggravated by the slightest motion. Violent pressure in the right frontal eminence, extending outward.

Violent pressure extending from the forehead towards the nose.

Hard pressure, almost as if bruised, in the forehead or temples, as if on the surface of the brain, on reflecting, especially in the evening, though not preventing thought. Hard pressure in the left side of the forehead. Pressure and gnawing in the forehead, at the root of the nose. Pressure in the forehead, as after intoxication. dulness in the forehead, especially in the orbits.

Dull headache in the forehead and temples, with tolerably good humor. Headache in the forehead, on suddenly turning the head and on stepping hard. Dull stitches in the middle of the forehead, from within outward. Temples. Violent pressure in the right temple, from within outward. Pinching pressure in the right temple. Pinching pressure in and on the right temple, aggravated by motion. Pinching dull hard pressure in the left temple, at rhythmical intervals. Pressive pain in the right temple. Hard pressure above the left temple, extending to the occiput, with dread of motion. Boring, with pressure, in the left temple.

Violent sticking in the right temple, extending into the eye.

Violent sticking in the right temple. A dull stitch in the right temple, shooting like an arrow deep into the brain, at frequent intervals. Some sharp thrusts in the right temple. Pain as if both temporal bones were pinched together with pincers. Pain as if both temples were squeezed to a single place, in the evening, in bed. Drawing in the left temple and anterior cartilage of the ear, becoming a pressure on motion. Tearing in the left temple, extending to the forehead, aggravated by motion. Vertex and Parietals. Drawing pressure in the right side of the vertex and occipital bone, aggravated by motion. Intermitting dull sticking pressure deep in the left side of the vertex. Violent forcing and pressing out at the vertex, lasting three days. Sticking, with drawing, on the vertex, relieved by pressure. A sharp persistent stitch in the vertex externally aggravated by touch. Tearing in the vertex and occiput. Dull crawling headache in the sinciput, with perspiration on the forehead. Feeling of warmth on the side of the parietal bone. A pinching pressure in the parietal bones, aggravated by motion. Occiput and External Head. Pinching-tearing pressure in the occiput, aggravated by noise or the slightest motion. Painful pressure in the right side of the occiput, extending outward (after an hour and a half). Pressure in the occiput, as though he were lying upon something hard. Pressure in the occiput, as fro a hard body, relieved by rubbing. Pressive pain in the right side of the occiput, also in part extending forward, all day, aggravated by pressure and turning the head (after seven hours). Heaviness and pressing forward in the occiput on bending the head forward, disappearing on bending it backward. Headache in the occiput, obliging him to lie down.

Drawing pain in the occipital bones every day. Bruised pain in the occiput, at the insertion of cervical muscles. Digging boring in the right side of the occiput. Profuse falling of the hair.

Painful elevations on the scalp, with touched. Feeling of coldness on the scalp. The scalp is painful to touch, as if sore, or as from pulling the hair. Dull pain in the scalp. Burning pain on the right side of the scalp. A burning stitch on the head.

Itching on the scalp.


Objective. Glassy look in both eyes, with almost involuntary motion of the eyeball, mostly when staring straight ahead. Eyes weak, glassy. Eyes lusterless. Staring look. Inflammation of the eyes, and a stye on the upper lid. Eyes sunken, weak. Blue rings around the eyes. Swelling of the lower integuments of the eye and beneath the lids. Subjective. Burning in the eyes, with burning lachrymation. Sudden burning in the left eye. Burning and pressure in the eyes; she cannot look at the light, in the evening. Burning in the integuments of eye all day, and burning itching in the inner canthus. Biting burning in the eyes, especially in the evening, by the light. Pressure in the eyes, as if they were too large, with immobility, as if he had not slept enough, with dulness in the head. Pressure in both eyes, extending backward. Sensation as if the eyes were being pressed out, causing frequent blinking. Constant pressure upon the eyes after looking too long at an object, obliging him to close the eyes. Sudden pain in the left eye, as from a grain of sand, or as from a pimple. The eyes are painful, in the morning, on opening them; she cannot keep them open long. Violent headache above the eyes, so that she could not open them. Stitches above the left eye, extending up into the head. Itching and pressing in the eye.

Itching of the eye. Orbit and Lid. Dull pressive pain above the orbits, with stitches behind the ears, in the afternoon. Sharp sticking in the thin bony wall of the orbit, towards the root of the nose. Pressive pinching in the upper margin of the left orbit. Swelling and redness of the lower lid. Agglutination of the eyes. Dry matter on the lids, in the morning, with smarting, on cleaning the eyes. Twitching of the lower lid, towards the inner canthus (after nine hours). The eyelids are heavy, as if they would close. Perceptible coldness of the inner margin of the lids, on closing the eyes. Burning on the inner canthus, as from too much air and light, mostly in the afternoon, relieved by pressing the lids together. Burning beneath the upper lid.

Pressure beneath the left lower lid, aggravated by pressing upon it, and then immediately disappearing. Pressure and a sensation of heaviness in the right eyelid. Pressure in the left lower lid.

Drawing stitches through the lids, from one canthus to the other, with sharp stitches in the canthi and around the orbits. Sudden stitches, as if electric, beneath the right lid, so that he was obliged to press the eyes together. Lachrymal Apparatus. Biting water runs from the eyes (after a few hours). Lachrymation of both eyes. Ball. A yellow spot in the white of the eye, towards the inner canthus, though still more towards the cornea, together with dimness of vision, that disappears on dilating the pupil, by holding the hand before it. Pain, as if the eyeballs would be forcibly pressed together and into the head. Dull pain, at one time sticking, at another burning, piercing the right eyeball at the external canthus, followed by sensation as of a broad surface of snow before the eyes on which fiery points were falling, afterwards as if a fiery surface were before the eye, on which glistening white points were falling. Pupil. Excessive dilatation of the right pupil, increasing on exerting vision, and even after seven days it was four times as large as the left (immediately).

Pupils greatly dilated (after eight hours and a half). Pupils dilated for six hours (after three hours). Pupils dilated (after one hour). Pupils at first dilated, then contracted, for sixteen hours (after one hour ). Pupils contracted for several days (after half an hour). Contraction of the pupils, without effect upon vision (after three-quarters of an hour). Vision. Sees better at a distance (curative action in one short- sighted).

Increased short-sightedness. Eyes weak, sunken. Weakness of the eyes, more in the forenoon than in the afternoon; distant objects seem enveloped in mist, and become distinct only on exerting vision; every near somewhat bright object blinds him, and causes pressure in the eyes; the same thing also happens if he comes suddenly into the dark. Everything farther than six paces seems enveloped in a fog. Dimness of the eyes, with flickering and pressure in the inner canthus, if she looks long at one spot; after rubbing, tears come, and the dimness disappears. While sewing, reading, and writing, it seems as though a mist were before the eyes; she cannot distinguish letters, but at a distance everything is bright and clear; if she looks away from her work a moment, then she is able to see near objects better, though the dimness of vision immediately returns on reading; without pain in the eyes. Flickering before the eyes while reading by the light. Black stripes before the eyes; wiping does not relieve; it seems as though he must look under the forehead with the head bent over. In the evening, while sitting, large ciphers seem to come before the eyes, wherewith the head feels very dull and bad, and at last very dull and bad, at last very hot.


Swelling and heat, with burning and itching in both ears.

Jerking, at times only a simple tearing, in the cartilage of the left ear. Fine jerking in the lobule of the right ear. Sticking itching in the lobule of the right ear (after two hours). Tearing in the external and middle ear. Drawing in the right external and middle ear. Spasmodic drawing pain in the ear. Spasmodic drawing pain in the right ear. Stitches in the ear, with drawing pain in the jaws and teeth. An almost painful stitch in the left ear, that disappears on putting the finger into the ear (after six hours and a half). Stitches in the ears, only on every musical sound or stroke of the bell, also during her own singing.

Stitches in the ears, with drawing pain in the left cheek. Long- continued fine stitch, deep in the right ear. Burning stitches in the ears. Itching stitches within the right ear, persistent while moving the lower jaw (after twenty-seven hours). Hearing. The watch which he usually hears at twenty paces can only be heard at ten. He cannot hear a watch at a moderate distance; three paces from the ear it is distinct, but close to the ear he does not hear the ticking, only a hissing. Roaring in the ears, every day.

Roaring in the ears, from evening on, though not while lying in bed, but returning in the morning. Roaring in the ears, especially in the right (after fifteen hours). Roaring in the ears, with difficult hearing. Ringing, as of bells, in the ears.

Ringing in the left ear, at night. Loud re-echoing of every sound in the ear. Constant singing in the ears, worse while lying down.

Screaming in the ear, on blowing the nose. He is intolerant of musical sounds for a long time. Sound in the bedroom, at right, as though a bird or bat were flapping about, endeavoring to escape. Illusion of sense, as if he herd the stroke of a bell, or heard things move that were lying high up near him out of sight.


Swelling on the back of the nose, with also red spots on the sides, that now appear, and now disappear, with a tense sensation. Violent coryza. Violent coryza, with red margins of the nostrils. Discharge of matter from the nose. Bleeding of the nose, and frequent blowing of blood from it. Nose dry. Swelling and sore sensation in the choanae. Bitter mucus frequently passes from the choanae into the fauces and mouth. Accumulation of mucus in the nose. Crawling and burning in the nose. Smell. Smell extremely acute. Odors take away his breath.


Paleness of the face. Paleness of the face, in the morning, immediately after rising, with inclination to stare. Face frequently dark red, for a moment, with flushes of heat in the face. Tension of the skin of the face, as if albumen had dried on it, with extremely perceptible heat. Cheek and Lip. Fine, very transient drawing through the left cheek into the ear. Burning pain in small spot on the left cheek. The lower lip is cracked in the middle. Burning pain in the left side of the lower lip.

Violent burning pain in the lower lip, persistent even on moving it. Dull sticking and crawling on one point on the red of the lip. Jaw. The lower jaw, in front of the ear, is painful, as if it would be torn from the articulation, aggravated by chewing(.

Pain, like a broad pressive stitch, in the glands beneath the left corner of the lower jaw, when touched, associated with sore throat internally. Dull pressive-drawing pain in the right angle of the lower jaw.


Teeth. Profuse bleeding of a hollow tooth. Violent toothache in a hollow tooth, on getting food into it, disappearing on picking it out. Burning pain in the from teeth, at night. Teeth set on edge, as from a corrosive acid. Pain in a wisdom tooth. Jerk like tearing in the right upper back teeth, not affected by chewing.

Tearing in the teeth, extending into the head, as if the teeth would be pressed apart and forced out, aggravated by the warmth of the bed and also by everything hot or cold. Tingling, like a tingling burning, in the hollow teeth. Boring-sticking toothache, ending with swelling of the cheek. An almost painful feeling of coldness in the roots of the back teeth, especially on chewing anything, disappearing after eating. Gums. Bleeding of the gum on the slightest touch. The gum is swollen internally, and painful on eating and touch. Sore pain in the whole gum when touched, with bleeding when rubbed. Tongue. Tongue coated white (after twenty-four hours). Swelling of the tongue, with pain, when talking. Dry sensation on the tongue and palate, without thirst.

Burning on the tongue (immediately). Burning in several points, as from something corrosive on the tongue. Sticking in the tip of the tongue. Sticking pain in the right side of the tongue.

Itching stitches in the tip of the tongue. Itching on the tongue, for several days. General Mouth. Mouth slimy, oily, with thirst, in the morning. The palate is dry, without thirst. Great dryness in the mouth, in the afternoon, with much tasteless, glutinous, soapy mucus, that he frequently spits out. Pain in the mouth, as if sore and raw, when not swallowing. Painful soreness in the arch of the palate, and rawness in the throat, especially on expiration. Boring, posteriorly, on the arch of the palate, as if it were inflamed and sore. Saliva. Much frothy saliva, of a sharp taste, in the mouth (after two hours). Much acid saliva in the mouth. Taste. Constant sour taste in the mouth. Foul insipid taste. Foul musty taste in the mouth. Herby taste in the mouth, in the morning, also at breakfast. Bread tastes bitter as gall, with otherwise natural taste. Long after-taste of bread, with some scraping in the throat. After-taste to food, especially to bread, in the morning. Food has little though not unnatural taste.


Inflammation of the throat internally, with blisters and biting pain. Sore throat, on the left side, like an ulcer, throbbing, tensive, and feeling dry when not swallowing; speech is difficult, and swallowing causes a scraping sore pain, extending into the ears, where there is also a scratching, sticking pain.

Sore throat, as if raw; she is obliged to hack, and it is painful on talking and swallowing. Feeling of soreness in the throat when swallowing. Rawness of the throat, that prevents talking.

Inclination to cough caused by tickling in the pit of the throat.

Sticking in the throat, on swallowing food. A pressive stitch in the throat, as soon as he swallows saliva. Smarting in the throat when not swallowing. Scraping in the throat, on swallowing bread, Constrictive pain, as if the pit of the throat were constricted, worse on bending the neck. The throat, in the region of the thyroid cartilage, is painful on swallowing. Fauces and Swallowing. Scraping feel in left side of fauces, felt as though an ear of barely or something of the kind was in the throat.

Could not swallow easily; it seems as though something were;lying behind the palate.


Appetite and Thirst. Ravenous hunger woke him at night. The chile constantly longs for food, without eating it. Loss of appetite.

Excessive thirst. Thirst for cold milk, that scarcely can be quenched. Much thirst for beer, all day, after the colic.

Eructations. Constant eructations of gas, always preceded by rumbling in the stomach, after eating. Frequent eructations of gas. Burning sour eructations, not audible, not rising up to the mouth. Incomplete disagreeable eructations. Sourish eructations, an hour after a meal. Nausea an Vomiting. Excessive nausea, so that she was obliged to lie down (after eating), preceded by twisting about in the stomach. Even the look of the black bread nauseates, especially on account of its sourish odor; when eating it almost causes vomiting. Nausea, as if in the palate. Very qualmish in the evening, obliged to lie down. Qualmish nausea, in the epigastric region. Sour vomiting. Vomiting of food, and then vomiting nearly every hour, day and night, till morning. Stomach.

Rumbling and gurgling in the epigastric region. Acidity in the stomach. Feels uncomfortable and anxious, after eating. Coldness in the stomach. Burning in the stomach beneath the pit of the stomach, afterwards extending to the left side. Heaviness in the stomach like lead, after eating. Pressure in the stomach, before and also after eating, aggravated by motion. Pressure in the stomach and great sleepiness, after eating and drinking. Pressure in the stomach, as from a weight, after every meal, with sleepiness, so that he could work at nothing. Pressive pain in the stomach, whenever the pit of the stomach is touched; he cannot button the clothes tightly. Pressive stitches in the pit of the stomach, as if something would be pulled away. Stitches in the pit of stomach, and a drawing, extending thence to the small of the back.


Hypochondria. Griping in the hypochondria, extending towards the left side. Pressive pinching, after waking, in the morning, just above the hepatic region, extending thence to the umbilical region. Pressure and pressing in the hypochondria, with great anxiety, so that he thought he would die, mostly while sitting.

Feeling of heaviness in the liver. Burning pain, in one spot, in the hepatic region. Stitches in the hepatic and splenic regions.

Umbilicus and Sides. Intermitting, pressure, dull stitches about the umbilical region, and on many other parts of the body and limbs. Periodic pressive griping in the umbilicus. Griping and pinching in the umbilical region, while sitting. Constant, violent pressive griping in the umbilical region. Burning and smarting in the umbilical region, while walking, in the open air.

Violent rumbling in the left side of the abdomen. Excessive griping constriction of the intestines from both sides of the umbilical region. Tensive sticking pain in the whole right side of the abdomen and chest, that almost takes away the breath.

General Abdomen. Distension of the abdomen, entirely relieved by emission of flatus. Much emission of flatus, smelling like garlic (first day). Much flatulence and emission of flatus. Unusual emission of flatus, of a garlicky odor, for half an hour, in the evening (second day). Incarcerated flatus. Audible rumbling in the abdomen. Loud rumbling in the whole abdomen, especially in the upper abdomen, only while lying down. Gurgling in the abdomen, as from the swashing of water if he bends forward or backwards, even when touching the abdomen. Fulness in the abdomen, immediately after a meal, though with tolerable appetite. Contraction in the intestines, in the morning, during stool, followed by biting in the rectum. Tension of the abdomen, with nausea. Tension in the abdomen, with a sensation of Fulness, without flatulence. Tensive pain in the upper abdomen, that almost takes away the breath. Griping colic, in the evening, on walking. Pressive griping pain in the abdomen, like flatulent colic, on walking in the open air. Pinching, griping pain in bowels, followed by diarrhoeic stool, as if Colocynth or some drastic medicine had been taken. Cutting colic, while walking.

Previous to coughing, he cries out with pain in the abdomen.

Cutting pain, by paroxysms, transversely through the abdomen. Cutting pain in the abdomen, together with dull sticking pressure in the coccyx. Cutting griping in the abdomen, as in diarrhoea, in the evening, before going to sleep. Cutting pain in the abdomen, with drawing in the pelvis, at night. Sticking pain in the abdomen, beneath the last left ribs, aggravated by inspiration. Fine intermitting stitches in the abdomen, extending to the pit of the stomach, especially on becoming erect, while sitting. Needle-like stitches in the abdominal muscles on the left side. Hypogastrium and Iliac Region. At the close of micturition a sensation as if a weight were lying in the lower abdomen and pressing towards the genitals (after half an hour).

About the author

TF Allen

TF Allen

Dr. Timothy Field Allen, M.D. ( 1837 - 1902)
Born in 1837in Westminster, Vermont. . He was an orthodox doctor who converted to homeopathy
Dr. Allen compiled the Encyclopedia of Pure Materia Medica over the course of 10 years.
In 1881 Allen published A Critical Revision of the Encyclopedia of Pure Materia Medica.

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