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

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

(Acetate of Lime)

Experience, and experience alone, but not baseless conjecture, can and dare pronounce respecting the power of drugs to effect alterations in the health of human beings.

From the earliest times it has been firmly accepted as a maxim in ordinary medicine, that calcareous substances introduced and taken into the human body are useless and powerless. It was, no doubt, conceded that they absorbed and neutralised morbid acids present in the stomach, but even in such cases the calcareous neutral salt thence resulting was held to be unmedicinal.

In the ordinary condition of the stomach there is no free acid in the gastric juice, and likewise none in many of its morbid states, and hence pure calcareous earth, considering its nature, may perhaps not be a medicine capable of altering the health of human beings; but the inference from this as to its non-medicinal character in a state of solution, without an appeal to experience on the subject, is like all inferences a priori in medicine, which are not based on facts, to say the least, extremely permature and dogmatic, like most of those in ordinary medicine.

Some cases of great disturbance of the health following the ingestion of pure carbonate of lime in persons who were manifestly suffering from morbid acidity in the stomach induced me to institute experimentswith it in a dissolved state, and I found it possessed of great medicinal power, as the following symptoms show.

In order to obtain pure calcareous earth dissolved in pure acetic acid, I boiled crude, well washed oyster shells for an hour in a pure spring water, then broke them into fragments without using any metal instrument, and dissolved these fragments in distilled vinegar, which I heated up to the boiling point in a porcelain vessel until complete saturation was gradually effected. The filtered solution was evaporated to one fifth in a similar vessel, and with this fluid neutral salt, without the addition of alcohol, the following experiments were made.

It has a dark-yellow colour, and after a time precipitates a dark coloured glutinous substance, whereby the solution obtains a lighter yellow colour. The addition of some alcohol, about half as much by measure as the quantity of the solution, perserves the preparation from becoming mouldy, and makes it fit for medicinal use.

A drop of this is not seldom a too large homoeopathic dose. Ten to twelve globules the size of poppy seeds moistened with it are usually sufficient for a full dose.

Frequent very small doses of camphor allay the action of this medicine when it acts too violently in irritable subjects.

[HAHNEMANN was assisted in this proving by FRANZ, HARTMANN, LANGHAMMER, and WISLICENUS.

No symptoms are taken from old-school authorities.

The 1st edit has 255 symptoms, all “observations of others.” This 2ndedit has 270, 236 only being observations of others, while 34 are HAHNEMANN’S own. In the Chr. Krank the symptoms of calc. acet., reduced to 253, are incorporated with those of calc. carb., but distinguished by a sign.]


Vertigo, as if the body did not stand firm (aft. 6 h.). [Ws.]

Attack of stupefying vertigo, the head tended forwards to the left side when at rest and when moving (aft. ¾ h.). [Lr.]

Slight transient giddiness in the head (aft. ¼ h.). [Htn.]

When walking in the open air vertigo, he inclined to fall to the right side (aft. 2 h.). [Lr.]

5. Headache as from much rapid turning round – as if stupid in the head, from 3 a.m. till 4 p.m. (aft. 25 d.).

Every time he stopped sensation on the right side of the head, as if pains in the head commenced (aft. 6.1/2 h.). [Htn.]

Aching stupefying pain in the forehead, as in vertigo, when at rest and when at moving (aft. 1.1/4 h.). [Lr.]

In the left side of the occiput jerking pressing outwards, which extended to the nape (aft. 14 h.). [Htn.]

Aching pain in the forehead, especially over the left eye-brow, when walking in the open air (aft. 3 h.). [Lr.]

10. Violent pressing outwards in the whole of the left half of the brain (aft. 12 h.). [Htn.]

Aching pain darting through the occiput, which only goes off gradually (aft. 3.1/2 h.). [Htn.]

Pressive pain in the right temple, close to the eye, as if something hard pressed upon it (aft. 5.1/2 h.). [Htn.]

After stooping for some time, when standing, heavy headache, with perssure outwards in the whole forehead, but especially over the left eye (aft. 5.1/2 h.). [Htn.]

Aching pressing pain in the whole head, especially in both teples (aft. 9 h.). [Htn.]

15. Drawing aching headache in the left side of the occiput, with stiff sensation in the nape. [Fz.]

Drawing aching headache in the left palpebral region. [Fz.]

In the right side of the occiput an outward pressing pain (aft. ½ h.). [Htn.]

When reading obfuscation of the whole head, with aching stupefying pain in the forehead like a vertigo, which deprived him of his mental powers; he must stop reading, and knew not where he was (when sitting) (aft. 4.1/2 h.). [Lr.]

Aching pain in the right frontal protuberance, which extended to the right eye, and caused it to close involuntarily (aft. 1.1/2 h.). [Htn.]

20. In the morning after rising from bed, aching stupefying pains in the whole head, as if he had not yet slept enough, or had been revelling all night (aft. 14 h.). [Lr.]

Violent out-pressing, aching pain in the left temporal region (aft. 13.1/2 h.). [Htn.]

Whilst reading, when sitting, aching stupefying pain in the forehead, such as one gets in a violent wind (aft. 29 h.). [Lr.]

Sensation in the occiput as if it were pressed asunder from time to time (aft. 9.1/2h.). [Htn.]

Aching stupefying headache, which involves especially the whole forehead, when at rest and when moving. [Lr.]

25. Drawing headache in the right side of the forehead, over the eyeand in the occiput, on straining the thinking power (aft. 2 h.). [Fz.]

Obtuse pressive darts into both temples (aft. 24 h.). [Ws.]

When walking obtuse pressive darts, especially in the left side of the forehead, going off during the walk (aft. 27 h.). [Lr.]

The head is very heavy, in both temples he has strong jerks, and the whole head is painful when he stoops, but this goes off on rising up again (aft. 9.1/2 h.). [Htn.]

On the top of the head in the region of the crown strong throbbing, like that of an artery, with cutting blows outwards (aft. 10 h.). [Ws.]

30. Aching drawing, sometimes tearing headache, sometimes in the forehead, sometimesin the occiput, sometimes in the temples, which goes off by applying pressure, and disappears on straining the thoughts (aft. 3 d.). [Fz.]

When standing, regularly recurring out-boring knife thrusts in the left temporal region, which were only alleviated by touching, but which immediately disappeared on sitting down (aft. ¾ h.). [Lr.]

Violent stitches by jerks through the whole left half of the brain, which are often renewed, and then leave there an asunder-pressing sensation (aft. 3 h.). [Htn.]

Intermittent boring knife thrusts in the left temple, going off on touching (while sitting) (aft. 8 h.). [Lr.]

Pulsating stitches in the left side of the crown (aft. some m.). [Ws.]

35. When sitting boring stitch-like pain in the left side of the forehead, which goes off immediately on touching, walking, and standing (aft. 12.1/2 h.). [Lr.]

Intermittent needle pricks in the left side of the forehead in all positions (aft. 7, 27 h.). [Lr.]

In the open air he is quite well, but as soon as he enters a room the headache recurs with increased severity, and he is very cross and unwilling to speak. [Fz.]

Aching stupefying pain on the right side of the forehead above the eyebrow, which is particularly aggravated by stooping (aft. 50 h.). [Lr.]

Fine stitches on the crown, externally (aft. 7 h.). [Ws.]

40. Itching formication on the hairy scalp, not removed by rubbing (aft. 10 h.). [Ws.]

Tickling itching on the hairy scalp, which compels scratching, during which the roots of the hairs are painful when touched, for half a day (aft. 4.1/4 h.). [Lr.]

Boring stitches in the middle of the forehead, just as if it penetrated into the brain (aft.3 h.). [Ws.]

On touching the occiput sore pain on the left side, as if the part were gathering (aft. 32 h.). [Lr.]

The whole of the scalp is painfully sensitive, especially on moving the frontal muscles to and fro (aft. 1.1/2 h.). [Ws.]

45. Drawing and aching in the temporal bone. [Fz.]

Aching drawing headache in the right temporal muscles, and pressure on the upper row of teeth; both go off as long as he presses on the temple and instead thereof there occurs aching pain in the forehead (aft. 2 d.). [Fz.]

In the evening drawing aching pain in the temporal muscle. [Fz.]

Cramp-like pain in the right temple (aft. 6 h.). [Ws.]

Cramp-like pain in the left temporal region (aft. 8, 14 h.). [Lr.]

50. After a meal drawing aching pain about the temples (aft. 2 d.). [Fz.]

Pressive sensation in the left temporal bone as if it were perssed in, at once internally and externally (aft. 7.1/2 h.). [Htn.]

On moving the lower jaw digging stitches in the left temple, near the superciliary arch (aft. 5 h.). [Lr.]

Suppurating pimple above the left eyebrow (aft. 5 h.). [Lr.]

Boring stitching on the upper border of the orbit, from within outwards (aft. 5 h.). [Ws.]

55. Dilated pupils (aft. 1.1/4 h.). [Lr.]

Contracted pupils (aft. 25, 26 h,). [Lr.]

Shooting in the internal and external canthi. [Fz.]

Violent tearing stitches in the right eye as if it were inflamed (aft. 4 h.). [Fz.]

Itching stitches in the internal canthi, which go off by rubbing (aft. 1/8 h.). [Ws.]

60. Burning sensation in the left upper eyelid, towards the inner canthus (aft. 6.1/2 h.).[Ws.]

Mucus in the canthi, for two days (aft. 10 h.). [Lr.]

On moving the eyelids he notices stickness of them, with aching in the outer canthi (aft. 55 h.). [Lr.]

On awaking from sleep the eyes were closed up with mucus (aft. 24 h.). [Lr.]

Tickling itching on the right outer canthus, which compels rubbing (aft. 25 h.). [Lr.]

65. Fine information under the eye and on the side of the nose under the skin. [Ws.]

Fine twitching on the upper border of the orbit down to the nose (aft. ¾ h.). [Ws.]

Long-sightedness (In a very short- sighted person; curative reaction of the organism.); he could see all objects distinctly at a conciderable distance all day long (aft. 28.1/2 h.). [Lr.]

Slight whirring in both ears, with confusion of the whole head (aft. ½ h.). [Ws.]

Cramp-feeling on the back of the left concha (aft. 9 h.). [Htn.]

70. Twitching in the cartilage of the ear (aft. 48 h.). [Ws.]

A boil under the lobe of the ear, on account of which, when chewing, there is tensive pain in the maxillary joint.

Sensation in the right ear as if something were pushed before the membrana tympani, without diminution of the hearing (aft. 15 h.). [Lr.]

Stitches in the ears.

Throbbing on both malar bones like the pulsation of an artery (aft. 6 h.). [Ws.]

75. Tensive sensation in the right cheek as if it were swollen (aft. 2 d.). [Fz.]

In the middle of the cheek a painless pimple that exuded moisture after scratching it, and left behind it a greenish scab (aft. 48 h.). [Lr.]

Dull pain in the fleshy parts of the left ceek (aft. 2.1/4 h.) [Lr.]

Gnawing pain at the root of the nose (aft. 1 h.). [Ws.]

Illusion pf smell; in the nose he percieved a smell as of rotteneggs or gunpowder (aft. 1 h.). [Lgh.]

80. Aching pain in the right upper jaw when chewing (aft. 3 h.). [Htn.]

Violent tearing in the right upper jaw (aft. 9 h.). [Htn.]

Itching formication on th upper lip, under the septum nasi, which goes off on rubbing, but immediately reappears in another place close by (aft. 1 h.). [Ws.]

Roughness and dryness of the lips, especially of the upper lip, as if it would chap (aft. 49 h.). [Lr.]

Under the right commissure of the mouth a large exuding scab, for many days (aft. 14 d.).

85. Tickling itching on the border of the left lower jaw which forces him to scratch (aft. 10 h.). [Lr.]

Swelling of the submaxillary gland, with aching feeling in it. [Fz.]

Gnawing toothache in the right upper molars, as if they would become hollow, in all positions (aft. 6 h.). [Lr.]

Boring sensation in th upper gums, on the right side, followed by swelling of them, with aching drawing in the right temporal muscle (aft. 3 d.) [Fz.]

Stitches in the teeth.

90. Toothache: fine shooting in the gums of the whole upper jaw (aft. 2.1/4 h.). [Lr.]

Sensation of roughness and soreness of the tongue, which is covered with white fur (aft. 1 h.). [Lr.]

Heat in the mouth, burning on the tongue, and painful vesicles on it.

The back of the palate is rough and scrapy; this excites coughing, but is not removed by coughing (aft. 12 h.). [Ws.]

Sore-throat: violent stitch on the right and upper part of the oesophagus when not swallowing (aft. ¾ h.). [Htn.]

95. In the morning much hawking up of mucus.

Swelling of the left cervical gland under the angle of the jaw, as large as pigeon’s egg, with shooting pain on the left side of the throat when swallowing.

Dryness in the mouth, with feeling of an excessive quantity of mucus at the back of the pharynx, observable when swallowing (aft. 1.3/4 h.). [Lr.]

Dryness in the mouth as from chalk (aft. 1 h.). [Fz.]

Collection of saliva in the mouth; he could not swallow down the saliva fast enough (aft. 1.1/2 h.). [Lr.]

100. Qualmishness and accumulation of saliva in the mouth (Aft. 3 h.). [Lr.]

Milk tastes sour and is repugnant to him (aft. ½ h.). [Htn.]

Milk tastes well to him 9aft. 3 h.). [Htn.]

Food has too litle taste; meat especially is not relished. [Fz.]

After a meal the headache is always increased, and even while eating it comes on with great sensitiveness of the teeth when chewing, as if they were loose and bent over. [Fz.]

105. Great thirst and desire for cold drinks, particularly for fresh water; he must drink much cold water, for eight hours (aft. 8, 10, 55 h.) [Lr.]

Frequent empty eructation (aft. ½, 1 h.). [Lr.]

Sourish eructation (aft. ½ h.). [Lr.]

Constant sourish eructation. [Htn.]

Disgusting sourish eructation (aft. 1 h.). [Lr.]

110. Frequent hiccup (aft. ¼, 3.1/2, 10, 28, 34 h.). [Lr.]

Severe hiccup for a quarter of an hour (aft. 5 h.). [Ws.]

Nausea and inclination to vomit; he thought he must vomit (aft. 1.1/4 h.). [Lr.]

He felt as if he must vomit; he has eructations, and the water flows into the mouth, with a kind of vertigo in the head (immediately). [Htn.]

When sitting great anxiety, which appeared to come from the stomach, with hot burning in the abdomen, which all goes offf immediately when standing or walking (aft. 26 h.). [Lr.]

115. Long stitches in the right side under the ribs (aft. 13.1/2 h.). [Htn.]

Tensive oppressive pain in the whole subcostal region, and in the scrobiculus cordis (aft. 19 h.). [Htn.]

Pinching nipping sensation in the whole subcostal region, which extends to the sternum, there becomes fine shooting, and excites eructations (aft. ¾ h.). [Htn.]

Dull pinching choking sensation just under the scrobiculus cordis (aft. ¼ h.). [Htn.]

Anxiety in the scrobiculus cordis (aft. 6 h.). [Ws.]

120. Violent pinching pains in the epigastrium and chest, which end here and there in a small stitch (aft. ½ h.). [Htn.]

A stitch that gives a shock from the hepatic region into the chest (aft. 10 h.). [Fz.]

Pinching sensation on a small spot, somewhat below the navel, which on rubbing with the finger changes into a clucking (aft. 2.1/2 h.). [Htn.]

Tearing in th abdominal muscles, increased by inspiration (aft. 2 h.). [Ws.]

In the abdominal muscles under the ribs a number of needle-pricks from within outward, especially on inspiring (aft. 5 h.). [Ws.]

125. Frequent formicating, upward-pushing and loud rumbling in the right side of the abdomen, as from accumulated flatulence, which also came away (aft. ¼ h.) [Lr.]

Audible bubbling in the right side of the abdomen, as if diarrhoea would come on (aft. 3.1/2, 5 h.). [Lr.]

Loud rumbling and grumbling in the abdomen as from emptiness (aft. 1.1/2, 28 h.) [Lr.]

In the right lumbar region a cutting, out-pressing pain, which goes off for a short time when touched, but returns immediately. [Fz.]

Sore pain on both sides of the groin, as if a glandular swelling would occur there, especially percepwhen walking; a small elevation of the gland can be felt there (aft. 10 h.). [Lr.]

130. Tearing pain in the inguinal glands when sitting and walking (aft. 9 h.). [Fz.]

Pinching almost spasmodic, pain in the abdominal integuments of the right groin on a small spot, only painful when speaking and pressing with the finger on it (aft. 8 h.). [Htn.]

Aching tensive sensation in the left inguinal region (aft. 8 h.). [Htn.]

Swelling of the glands in the left groin. (aft. 22 d.).

Tension in the inguinal glands, also when sitting (aft. 40 d.).

135. Pinching bellyache low down in the hypogastrium in the region of the bladder, frequently recurring, whereupon some flatus always passes (aft. ¼ h.). [Htn.]

Frequent noiseless discharge of flatus (aft. 1 h.). [Lr.]

During the evacuation of the stool, tenesmus at the end of the erctum, and loud grumbling and rumbling in the abdomen. [Ws.]

Diarrhea three or four times a day, for many days, not weakening.

Frequent evacuation of hard, pappy, and thin motions during the day, without suffering; but the following two days, constipation. (139 to 143. As acetate of lime excites and frequently causes with such certainty stools and urine in the primary action, and that without pain in the bowels (the sensation in the rectum, S. 137, excepted), the homoeopathic physician will know how to employ it usefully.)[Lr.]

140. The second day he has no stool. [Fz.]

Stool first thin, then crumbly, without pain in the bowels (aft. 5.1/2 h.) [Htn.]

Frequent urging to urinate with copious discharge of urine (aft. 1, 4 h.) [Lr.]

Frequent urging to urinate with scanty and very scanty discharge of urine (aft. 26 h.). [Lr.]

(The urine after standing looks cloudy, ilke muddy water.) [Ws.]

145. An acute tug in the orifice of the urethra. (From a dose of powdered oyster shells in acidity of the stomach.)

Tickling itching at the end of the glans penis, compelling rubbing (aft. 10 h.). [Lr.]

Itching tickling on the prepuce, compelling rubbing (aft. 9 h.). [Lr.]

Along with the tensive pain in the left groin, the left testicle is drawn spasmodically, and with pain, like aching, up to the abdomen, and is also painful when touched.

The first night two seminal emissions with voluptuous but unremembered dreams. [Htn.]

150. Two seminal emissions in one night without voluptuous dreams. [Lr.]

Seminal emission the first night. [Fz.]

(At first it increases the leucorrhoea.)

Discharge of blood from the womb, for some days, like menses, not weakening, in an old woman who had not menstriated for years (aft. 7 d.).

Frequent sneezing, without coryza. [Lr.]

155. Coryza with painful sensitiveness of the nose and internal heat in the head (aft. 72 h.). [Ws.]

Fluent coryza with much sneezing (aft. 27 h.). [Lr.]

Fluent coryza with headache (Both removed immediately by smelling at a solution of camphor.) (aft. 5 d.).

Severe stuffed coryza with pains in the head (aft. 32 d.).

160. Tickling irritation in the trachea causing short cough (aft. 2.1/2 h.). [Lr.]

On expiration loud rattling in the wind-pipe, as in children whose chest is full of mucus, for a quarter of an hour (aft. 37 h.). [Lr.]

Obtuse blows from the posterior wall of the thoracic cavity up to between the shoulders, synchronous with the heart’s beats, with great anguish (aft. 8 h.). [Ws.]

Difficult inspiration and great anxious tightness of chest, so that it took away his breath, to suffocation, for an hour; when moving and when sitting (aft. 30 h.). [Lr.]

Anguish in the chest, as if it were too tight; his breath is short, particularly when sitting, and he feels an aching pain in the whole chest, especially on inspiration; the heart beats anxiously and tremblingly. [Ws.]

165. Itching stitches on the chest, worst when expiring, going off by rubbing (aft. 46 h.). [Ws.]

At every beat of the heart a broad stitch upwards in the pectoral muscles (aft. 10 h.). [Ws.]

Shooting drawing pain in the region of the heart (aft. 9.1/2 h.). [Ws.]

The whole chest is painfully sensitive on touching and on inspiration. [Ws.]

Gnawing pain on the left side of the chest, as if externally on the ribs and sternum, only slightly by inspiring (aft. 1 h.). [Ws.]

170. In the last false ribs a cutting pain from within outwards, increased by inspiring (aft. 3 h.). [Ws.]

Sharp stitches in the left side under the axilla out of the chest, worst when inspiring (aft. 2 h.) [Ws.]

Sharp stitches in the right side of the chest from within outwards, independent of inspiration (aft. 7 h.). [Ws.]

Severe stitches out of the thoracic cavity through the spinal column, out between the shoulder-blades (aft. ½ h.). [Ws,.]

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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