Hahnemann’s proving symptoms of homeopathy remedy Muriaticum Acidum from Materia Medica Pura, which Samuel Hahnemann wrote between 1811 to 1821…

(Muriatic acid.)

(From vol. v, 2nd edit., 1826.)

(It should be carefully freed from the sulphuric acid often mixed with it, by means of re-distillation over the chloride of sodium, or (better) it may be precipitated by muriate of baryta, and, after being thus freed from the sulphuric acid, redistelled.)

For medicinal use one drop of it is first diluted by means of too succussion with 100 drops of diluted alcohol (made of equal parts of distilled water and strong alcohol taken together ten time), and of this one drop is to be twice successed (with two strokes of the arm) with 100 drops of undiluted alcohol (1/10000th), and then of this one drop is to be again twice shaken with 100 drops of alcohol (1/1). One globule the size of a poppy of a drop, for with one drop 200 such globules are sufficiently moistened. Yet this million-fold dilution, although administered in such a small volume, will be found in many cases to be still too powerful when muriatic acid is homoeopathically indicated, because this medicine possesses a high degree of efficacy.

Although a tolerably homoeopathic employment in suitable morbid states can be made from the following observed alterations in the healthy, yet it would be desirable to possess a more complete proving of it as to this pure effects.


Symptoms were obtained from the following old-school authorities:

CRAWFORD, in samml. f. prakt. Aerzte, xv, 3.

DU MESNIL, in sachse, Hufel. Journ., xxviii, vi. Hufeland’s Journal xviii, iii.

HUMBOLDT, Ueber die Reizbarkeit der Faser.

LETOCHA, in Hufel. Journ., xviii, iii.

RAMMAZZINI, De Morbis Artificum. Samml. f. prakt. Aerzte, xv, 3.

SCHAEKEL (reference not given).

SCHMIDTMULLER, in Horn’s Archiv, ix.

THEINER, in Annalen der Heilkunst, 1811, April.

WESTRUMB, in Sachse, Hufel. Journ., xxviii, vi.

The 1st edit. Has 274 symptoms, this 2nd edit. Only 5 more.]


Whirling in the open air and unsteady in walking (aft. 1.1/2 h.). [Gn.]

Whirling in the head, more so in the room than in the open air, with dimness before the eyes. [Stf.]

Headache in the forehead and occiput, which, especially that in the forehead is aggravated by sitting up in bed.

Tearing pain in the forehead.

5. Pressive pain from within outwards in the forehead and temples (aft. a few m.). [Ws.]

A pressive stupefying pain in the forehead in every position of the body, which went off by touching (aft. 1.1/2 h.). [Lr.]

Stupid in the head, in the forehead. [Stf.]

Long, frequently recurring stitches from both frontal protuberances towards the middle of the forehead (aft. 7 h.). [Htn.]

Headache like a boring in several places in the vertex, from the bones of the skull into the brain (aft. 10 h.). [Ws.]

10. Long tearing pressing pain darting by shocks into the forehead towards the right orbit (aft. 5.1/4 h.). [Htn.]

Aching pain in the left temple (aft. 4.1/4 h.). [Gn.]

Aching pain from the middle of the brain out towards the left side of the forehead (aft. 6 h.). [Gn.]

Aching pain in the front of the brain, increased by moving the eyes (aft. 3 d.). [Gn.]

Tensive pressive pain spreading from the occiputal bone forwards through the brain and ending in the forehead (aft. 2.1/4 h.). [Gn.]

15. Jerking beating tearing pain from the left half of the occiput to the forehead; soon followed by a similar pain in the right half (aft. 7 h.). [Htn.]

Heaviness in the occiput, as if it drew her head backwards, or as if the anterior cervical muscles had lost their firmness (aft. 1.3/4 h.). [Gn.]

Heavy feeling in the occiput, woth drawing stitches there, more on the right side, close to the nape, with swelling of a gland in the nape, which is painful when touched; at the same time heaviness and vertigo in the head, with dimness of the eyes as when intoxicated (when sitting) (aft. ¾ h.). [Htn.]

Sensation in the integuments of the head and forehead, as when the hair stands on end after a fright (aft. 5, 7 h.). [Gn.]

Burning pain on the hairy scalp above the left temple (aft. 7.1/2 h.). [Gn.]

20. Tensive sensation in the right temple (aft. 7.1/2 h.). [Gn.]

Pressive stupefying pain in the forehead, in all positions (aft. 1 h.). [Lr.]

(Headache in the top of the head and in the temples, sometimes also in the occiput and forehead, as if the brain were lacerated and crushed, as in typhus or putrid fever.) (aft. 4 h.).

When yawning, a stitch-like tearing on the right temple, which went on by touching and when walking (when standing)(aft. 1 h.). [Lr.]

Shooting in the forehead extending into the temple, increased by stooping forwards and by pressing on it. [Stf.]

25. In the middle of the forehead two small pimples which suppurate without itching or pains (aft. 11 h.). [Lr.]

Eruption of pimples on the forehead which in the course of a day and night coalesce so as to form scab. (From drachm-doses of so-called oxygenated muriatic acid (aqua oxymuriatica.) [SCHMIDTMULLER, (Not accessible.) in Horn’s Archiv, ix, 11]

Suppurating pimple on the left temple without sensation in it touched or let alone (aft. 9 h.). [Lr.]

Burning aching pain above the left eye, externally (aft. 2.1/2 h.). [Htn.]

Contracted pupils (aft. ¾, 1.3/4, 2, 2,3/4 h.). [Lr.]

30. Dilated pupils (aft. 11 h.). [Lr.]

Very dilated pupils (aft. 15 h.). [Lr.]

Pupils sometimes more, sometimes less dilated, sometimes contracted, in periods of four or five hours. [Lr.]

From the left occiputal protuberance a painless tug into the left eye, which causes a quivering in the upper eyelid (aft. 4 h.). [Htn.]

Swelling of the upper and lower eyelid, with redness, but without pain (aft. 7 h.). [Gn.]

35. Cutting pain in the right eyeball, when at rest (aft. 5.1/4 h.). [Gn.]

In the outer canthus of the left eye an eroding smarting in the evening.

Itching prick in the right outer canthus, when at rest. [Gn.]

Twitching through the upper eyelid towards the zygomatic process, as if a thread were drawn through (immediately). [Ws.]

(Flickering before the eyes and hemiopia; he sees only the half of an object cut off perpendicularly from the other half.)

40. Cramp-pain near the left maxillary joint, extending as a shooting pain into the interior of the ear when pressed upon (aft. 5 h.). [Htn.]

Tearing pain in the left upper jaw, as if in the bone, close under the orbit (aft. 2.1/2 h.). [Htn.]

Eruption of pimples in the auricle, which in the course of a day and night coalesce to form a scab. [SCHMIDTMULLER, l. c.]

Fine itching prick in the left ear, which went off by putting the finger into it (aft. 31 h.). [Gn.]

Twitching pinching deep in the left ear (aft. 4 h.), which after frequent recurrence became cramp-like, almost like earache. [Htn.]

45. Drawing aching in the tragus, pressing on it send the pain into the inner ear (aft. 6.1/2 h.). [Htn.]

Persistent pinching deep in the right ear, sometimes interrupted by severe stitches which extend to behind the auricle, where the part is painful when pressed (aft. 3 h.). [Htn.]

Tearing pain in the left ear, like earache (aft. 8.1/2 h.). [Htn.]

Obtuse pressive cutting on the mastoid process; when touched the part is painful as if gathering (aft. 8 h.). [Ws.]

Drawing tearing pain behind both ears, which spreads slowly to the lower part of the nape and there causes a painful stiffness on moving the neck, for twenty minutes (aft. 8.1/4 h.). [Htn.]

50. More acute and delicate hearing. (Curative secondary action of the organism.)

Shooting pain in the nostrils, as if they would become ulcerated (aft. 2 h.).

When walking in the open air glowing red cheeks (aft. 14 h.). [Lr.]

In the red of the lower lip a pustule.

Eruption of pimples round about the lips, which in the course of a day and a night coalesce to form a scab. [SCHMIDTMULLER, l. c.]

55. A vesicle on the upper lip close to the left commissure of the mouth, which pains like an ulcer when touched, and causes tensive pain when the lips are moved, lasting two days (aft. ½ h.). [Gn.]

Burning tension in the upper lip, on the right side (aft. 7 h.). [Gn.]

Pressing-asunder pain in the left canine tooth of the lower, going off on compressing it with two fingers (aft. ¼ h.). [Htn.]

Tingling sensation in the inferior maxilla on its left side, which changes into a disagreeable creeping sensation in the left lower row of teeth (aft. 1 h.). [Htn.]

Cold drink darts painfully into the diseased tooth (aft. 24 h.).

60. His tongue is too heavy and as if too long; and he could only raise it with an effort; at the same time great dryness in the mouth and fauces – both lasting five minutes (aft. 1 h.). [Htn.]

The tongue becomes sore and bluish. [LETOCHA, (not Letocha, and nothing about muriatic acid, to be found at this reference, (See note to S. – 34.) in Hufel. Journ., xviii, iii, pp. 45, 46.]

A pock in the middle of the tongue with burning pain. [LETOCHA, l. c.]

The tongue gets a deep ulcer with black fundus and everted borders. [LETOCHA, l. c.]

The tongue wastes away. [LETOCHA, l. c.]

65. A sharp scraping in the gullet.

Ravenous appetite, morbid thirst. (In the workmen employed in salt manufactories, from the vapour of muriatic acid arising from the boiling ley.) [RAMAZZINI, De Morbis Artificum, cap. 31.]

A taste in the mouth at once harsh and putrid, almost like rotten eggs, with flow of saliva (aft. 4.1/2 h.). [Lr.]

Bad taste in the throat, as from rancid fat.

(Complete loss of appetite for all food, with proper taste and without nausea.)

70. Constant eructation.

Vomiting of food.

In the region of the stomach he feels qualmish and inclined to vomit (aft. 1 h.). [Stf.]

Obtuse pain in the stomach and bowels, combined with a contractive sensation, for several days. (From taking 20 drops of oxygenated muriatic acid diluted with water.) [CRAWFORD, in samml. f. prakt. Aerzte, xv. 3. (Translated from Philosofical Transactions, vol. lxxx, part 2, p. 425 which has been compared.)

Feeling of emptiness in the region of the stomach especially in the oesophagus, which does not go off by eating, together with rumbling in the bowels (aft. 1 h.). [Ws.]

75. Feeling of emptiness in the abdomen, with grumbling (aft. 1 h.). [Htn.]

(Colic: pinching when moving and on the discharge of flatus.)

After a proper stool of natural appearance, painful feeling of emptiness in the abdomen, in the morning (the 5th d.). [Hnl.]

After a very moderate meal, feeling of fulness in the abdomen, as if he had eaten too much, with distension of the abdomen. [Stf.]

Loud rumbling in the abdomen, as from emptiness (when sitting)(aft. 3.1/2 h.). [Lr.]

80. Rumbling and grumbling in the abdomen. [Stf.]

Pain like needle-pricks round about the navel, persistent (aft. 24 h.). [gn.]

Shooting in the left side, under the ribs. [Stf.]

In the hypogastrium violent cutting when sitting, walking and standing (aft. 4 d.). [Hnl.]

Cutting pain under the navel, through the middle of the whole abdomen (aft. 1 h.). [Htn.]

85. Violent pinching from the umbilical region towards both sides, with grumbling (aft. ½ h.). [Htn.]

Violent pinching pain in the umbilical region, with a feeling of emptiness, which extends to the scrobiculus cordis and oppresses there (aft. 1.1/2 h.). [Htn.]

Aching squeezing under the left short ribs, unaffected either by inspiration or expiration (aft. 1.3/4 h.). [Htn.]

The distented abdomen has aching pain, an at every step this goes through her abdomen. [Stf.]

Squeezing tension under the short ribs, causing him to make several deep inspirations and going off after the discharge of some flatus (aft. 2.3/4 h.). [Htn.]

90. Disagreeable sensation in the whole abdomen that causes anxiety, is alleviated by the discharge of some flatus, and goes off entirely after a stool (aft. 3 h.). [Htn.]

A violent jerking pinching pain externally on a small spot on the left side of the abdomen, more violent at every expiration (aft. 11 h.). [Htn.]

Violent cutting pinching from the rectum up to the epigastrium (aft. 1 h.), then urging to stool, which was softer than usual. [Gn.]

When standing or walking a cutting pinching in the abdomen, that went off when sitting (aft. 1 h.). [Lr.]

Burning stitch in the left groin (aft. 11 h.). [Gn.]

95. Pain like needle pricks in the lower part of the abdominal integument (aft. 1.1/2 h.). [Gn.]

Pain like needle-pricks in the lower part of the abdominal integument (aft. 1.1/2 h.). [Gn.]

Fine pinching in and below the umbilical; region, rather in the muscles of the abdomen (aft. ½ h.). [Ws.]

At the anus a creeping pricking itching, combined with sore pain (aft. 1 h.).

Burning stitches in the anus. [Hnl.]

100. Swollen haemorrhoidal lumps at the anus (blind piles) with burning sore pain.

Swollen blue haemorrhoidal lumps at the anus, which pain on being pressed.

A burning voluptuous itching in the perineum, close to the anus, which compelled scratching, for a quarter of an hour, in every position of the body, and which did not go off immediately on scratching. (aft. 15 h.). [Lr.]

Faeculent diarrhoea (aft. 10 h.).

(Soft stool with cutting and a qualmishness in the abdomen, as from a chill; after a stool he again felt well)(aft. 24 h.). [Ws.]

105. After a meal evacuation of a fluid stool. [Hnl.]

When urinating there passes unexpectedly a thin watery stool, not preceded by urging. [Hnl.]

Frequent call to make water, and he passes much urine.

(The urine is passed frequently and involuntarily)

Constant urging to urinate, when little, but always some, urine is discharged, without pain, but with tenesmus after it is passed. [Stf.]

110. Frequent micturition with urging. (If, soon after taking the muriatic acid in too large a dose, it seems to excite for a short time almost ineffectual urging to urinate, still there occurs soon after the peculiar primary action, copious discharge of urine, the secondary action of which (reaction of the organism) is always diminished secretion of urine with frequent urging to urinate, or lastly, relaxation of the neck of the bladder, or of the bladder itself. )(aft. 1.3/4 h.). [Lr.]

Frequent urging to urinate with discharge of much urine (aft. 3.3/4 h.). [Lr.]

An uncommonly copious flow of watery urine. [Stf.]

With frequent and urgent call to urinate he passes at least six times as much urine as the water he had drunk since morning (aft. ¼ h.). [Hnl.]

Weakness of the bladder [Samml. f. prakt. Aerzte. xv. 3.]

115. He has a call to urinate and yet no urine is passed; he must wait a while before it comes (aft. 6 h.).

The urine is discharged slowly, just as if the bladder had no power to expel it (aft. 12 h.). [Ws.]

Frequent urging to urinate, with discharge of very little water (aft. 72 h. and for several hours thereafter). [Lr.]

Strangury; she always felt as if the urine would come away, but nothing passes, yet when it comes it is passed without pains. [Stf.]

Immediately after urinating a shooting pain in the orifice of the urethra (aft. 4 h.). [Lr.]

120. The urine immediately on passing becomes cloudy white like milk.

Cutting quite posteriorly in the urethra when urinating (during the stool).

Violent burning stitch in the posterior part of the penis on the right side. [Hnl.]

Pain on the border of the prepuce, as if it were chapped and excoriated.

Boring tensive pain from the right testicle to the middle of the penis (aft. 4.1/2 h.). [Gn.]

125. Feeling of weakness in the genitals; the penis hangs down relaxed; complete absence of erection (Aft. 24 h.). [Ws.]

He awakes in the morning with a sensation as if a seminal discharge were coming, with slight stiffness of the penis, during which a watery, frothy, inodorous fluid is passed, followed by long-continued erection of the penis, with tensive pain. [Stf.]

A forcing in the genitals, as if the menses would come on (aft. 6 h.). [Stf.]

An itching and tickling in the nose and persistent inclination to sneeze, (From distant vapours of muriatic acid, in several persons.) [THEINER, (Not accessible) in Anaalen der Heilkunst, 1811. April.]

Along with feeling of coryza troublesome dryness in the nose.

130. Coryza. [samml. f. pr. Aertzte, l. c.]

Uncommon starrhal hoarseness. [SCHMIDTMULLER, l. c.]

Hoarseness for eight days. (From inhaling oxygenated muriatic acid.) [DU MESNI, in Sachse, Hufel. Journ., xxviii, vi, p. 31. (“Inhaled muriatiacid gas, and was hoarse for eight days.” )]

Haemoptysis. (From the same substance.) [WESTRUMB, in Sachse, l. c. (“The celebrated Westrumb had haemoptysis thereafter.”)]

He breathes deeply and with groaning. (From the vapour.) [ Hufel. Journ. xviii, (From fumigations of muriatic acid in typhus patients – Hahnemann wrongly refers this to the third part of the volume; it is in the fourth. (See note to S. 61.) ) iv, pp. 45, 46.]

135. Sighing. (As pervious symptom.) [Hufel. Journ., l. c.]

(Severe whooping cough, and after coughing there was audible rumbling down the chest.)

The beat of the heart was so violent during the nocturnal fever that felt it in the face. [Hnl.]

Dyspnoeic pressure on the chest, it fits.

Very painful oppression over the chest, especially on the right side (aft. 16 h.). [Htn.]

140. Painful aching in the right side of the chest, which became gradually more violent per se, not affected by either inspiration or expiration (aft. 5 h.). [Htn.]

Squeezing pressive sensation in the chest, but without dyspnoea (aft. 4 h.). [Htn.]

Pressive squeezing sensation in the right side of the chest, at the fourth and fifth ribs, always aggravated during inspiration (aft. 1 h.). [Htn.]

In the right side of the chest a drawing sensation, which commenced below the nipple, extended towards the throat, became weaker, and then went off (aft.2.1/2 h.). [Htn.]

Sharp stitches in the left side if the chest, at the lowest true ribs, without reference to inspiration or expiration (aft. 4 h.). [Ws.]

145. Shooting aching in the right side of the chest, under the nipple, gradually growing worse and gradually going off again (aft. 3.3/4 h.). [htn.]

Violent, severe stitches in the right nipple (aft. 14 h.). [Htn.]

Tensive pain on the sternum, which impedes respiration, as if it came from the stomach; the parts also painful when touched (aft. 20 h.).

Shooting under the sternum, just above the scobiculus cordis. [Stf.]

Cutting blows in the middle of the inside of the sternum, along with obtuse pressure at the back of the thoracic cavity, general oppression thereof, and impeded respiration, all day, occasionally (aft. 4 h.). [Ws.]

150. On expiration, needle-pricks in the left side of the chest, betwixt two true ribs (when sitting), which went off when standing and walking and on being touched (aft. ¾ h.). [Lr.]

Tensive twitching stitch from the left false ribs out at the right ribs (aft. 3 h.). [Gn.]

Boring stitch in the right intercostal muscles, continuing when not breathing and when inspiring and expiring (when sitting)(aft. 8.1/2 h.). [Gn.]

When sitting, on expiration, needle-pricks on the right side of the chest, under the true ribs, which went off when touched and when walking and standing (aft. 3 h.). [Lr.]

Tensive boring pain in the chest, continuing during inspiration and expiration (aft. 51 h.). [Gn.]

155. Externally on the sides of the chest broad stitches going slowly upwards (aft. 1 h.). [Ws.]

Fine drawing tearing from the left side of the chest close beside the spine (aft. ¼ h.). [Htn.]

On inspiration aching pain in the left side of the chest close beside the spine (aft. ¼ h.). [Htn.]

When walking in the open air aching pains along the spine, which went off when standing or sitting (aft. 4.1/4 h.). [Lr.]

When sitting an aching pain in the middle of the back, as from prolonged stooping, which went off when standing or walking (aft. 2.1/4 h.). [Lr.]

160. When sitting an aching pain on the left side of the back, as from prolonged stooping, which did not go off by touching, walking, or standing (aft. 9 h.). [Lr.]

When sitting painful stitches on the left side of the back, which went off by standing or walking (aft. 1.1/2 h.). [Lr.]

After prolonged writing, with the back somewhat bent, violent pain in the back and scapulae, as if he had strained himself by lifting (aft. 33 h.). [Hnl.]

Sharp stitches, with fine drawing on the scapulae and hot feeling in these parts (aft. 1 h.). [Ws.]

Fine aching shooting on the inferior border of the right scapula (aft. 10 h.). [Htn.]

165. Drawing tensive pain between the scapulae, which alternates with a similar pain in the lowest short ribs, but does not impede respiration (aft. ½ h.). [Htn.]

When standing and sitting a aching pain in the sacrum, as from prolonged stooping, which goes off on touching and when walking (aft. 2 h.). [Lr.]

Burning sensation on the posterior muscles of the left upper arm close to the elbow-joint (aft. ¾ h.). [Htn.]

Heavy feeling in both arms; when he raised them the whole arm felt full of lead. [Htn.]

On making some exertion with the left arm, cramp in the upper arm, but, on flexing the arm, in the forearm (aft. ¼ h.). [Hnl.]

170. Pulsating, sometimes intermittent, violent twitchings of single muscular parts in the right upper arm (aft. 25 h.). [Hnl.]

When sitting and writing, in the muscles of the right upper arm a drawing tearing, which went off on moving and extending the arm (aft. ¼ h.). [Lr.]

Samuel Hahnemann
Samuel Hahnemann (1755-1843) was the founder of Homoeopathy. He is called the Father of Experimental Pharmacology because he was the first physician to prepare medicines in a specialized way; proving them on healthy human beings, to determine how the medicines acted to cure diseases.

Hahnemann's three major publications chart the development of homeopathy. In the Organon of Medicine, we see the fundamentals laid out. Materia Medica Pura records the exact symptoms of the remedy provings. In his book, The Chronic Diseases, Their Peculiar Nature and Their Homoeopathic Cure, he showed us how natural diseases become chronic in nature when suppressed by improper treatment.

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