Sulphuric 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…


Sulphuric acid, H2SO4.

Preparation: Dilutions with water.


Delirious shortly before death. For two nights, delirious and recognized no one. Uneasiness (after twelve hours). Nervous excitement. He was roused with difficulty, and when roused resisted fiercely, saying in a hoarse muffled voice, “Let me alone, let me die.” Excessively jocose. Exaltation of mind and disposition. Great distraction of mind; she often gave inappropriate answers. Hasty mood; nothing that she does can be finished quickly enough, though she makes unusual effort.

Constant moaning. Moaning very deeply (after half an hour).

Lachrymose without cause (first day). Very sad irritable mood.

Melancholy and weary of life. Dull gloomy mood, in the morning.

Despondent morose mood. Most excessive anxiety, and burning pain and heat in the stomach. Great anxiety, with restless tossing about. Extreme anxiety and nausea, followed by vomiting of mucus (immediately). Anxious, quarrelsome, averse to answering.

Diminution of the anxious oppressed mood and of the despondency with exaltation, and therefore (as curative action) a quiet refreshed condition. Great apprehension, from morning till evening (thirteenth day). Apprehensive and grieving, with inclination to weep (second day). Depressed. Was in a state of great fright. Very fearful, despondent, fretful. Very fearful; extremely mistrustful. Ill-humor, fretfulness. Ill-humor all day; she avoids speaking to every one. Extremely peevish, in the morning on waking. Very peevish, even during the day. It frets her to talk. Aversion to talking. Fretful, peevish, impatient, if his work is not done to suit. Sedate, earnest conditions of mind. So irritable and sick that she started violently at everything. Unconsciousness. Paroxysms of stupefaction.

(Stupor). (* Revised by Hughes. *) Inclination to coma.


Vertigo. Vertigo, in the afternoon, while sewing, as if she would fall from the chair. Vertigo, even to reeling; was obliged to lie down constantly, for as soon as she rose the vertigo reappeared. Vertigo in the house, which disappears in the open air. General Head. Dull pain in the head, as if full. Pressive dulness in the head. Dulness and heaviness of the head, in the morning. Sensation of heaviness and fullness in the head; she was obliged to hold it forward. Heaviness and pain in the head, as if the bran fell forward and came up again. Weakness in the head.

Headache. Pain as if the head would burst. Pain as if the head were shattered, in the morning after waking, and yet great sleepiness. Drawing headache, in the evening. Drawing headache, especially in the right side, towards the forehead. Drawing and tension in the head. Tearing in the whole head, day and night.- Stitches here and there in the head, when walking in the open air. Dull stitch deep in the brain, above the left frontal eminence, suddenly increasing, then diminishing, and at last suddenly disappearing. Forehead. Dulness and fullness in the forehead, the whole forenoon. Pain as from a blow, near the left frontal eminence, first in-creasing, then suddenly disappearing.

A feeling in the frontal region as if the brain loose and fell back and forth. Painful sensation of soreness, above the left frontal eminence, which is always more acute in isolated jerks.

Constriction in the forehead, at first increasing, then suddenly disappearing. Pressure, as from a blow, in the right side of the forehead, first increasing, then suddenly disappearing. Frequent pressive and burning headache in the forehead and eyes. Tearing and sticking in the right side of the forehead, relieved by pressure, in the evening. Sudden painful jerking above the left frontal eminence. A violent jerk from time to time beneath the left frontal eminence, suddenly disappearing. Painful tearing in the middle of the forehead, towards the left side. Acute pain beneath the right frontal eminence, as if the brain were loose and knocked against the skull, painful on shaking the head.

Sticking pain, now in the forehead, now in the occiput. Dull stitches in the forehead, now in the right, now in the left side, extending deep into the brain. Stitches, sudden, dull, and very sensitive, like thrusts, above the left frontal eminence, extending into the brain. Temples. Grumbling from time to time in the temporal bones. Pressing inward in both temples. Drawing in the left temple, rather external and in a small spot. Thrust in the right temple, as if a plug were sticking in and constantly pressed deeper. Single shooting-thrusting jerks in the right temple. A burning pain in the temples, as from a thrust or bruise, in wavelike intermissions. A painful tearing in the left temple, while sitting during breakfast. Tearing in the right temple, towards evening. Vertex and Parietals. Pressive pain in the vertex, while standing. Sudden confusion in the right side of the head, as from smoke, while sitting. Sensation of heaviness in the left side of the head. Sensation as if the left side of the head, before the ear, were screwed in. Stupefying throbbing pain in the right side of the head, on rising after stooping.

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.