Nitro-Muriatic Acid

Last modified on August 16th, 2018

Nitro-Muriatic Acid 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.


Acidum nitroso-muriaticum; Acidum Chloro-nitrosum. NO2Cl2 (or Cl2NO). Aqua regia. A mixture of three parts of Hydrochloric and one part of Nitric acid. Preparation: Dilutions with distilled water.


Headache and great sleepiness, at 1 P.M., increased and were worse at 3 P.M., but continued through the evening till ( retired at 11 P.M. (third day). Slight frontal headache, with some dizziness (after first dose). Peculiar sensations in the temples, as if brain were distended; a feeling of pressure on the temples (one hour after second dose, first day). While leaning in left side, sudden sticking ache in left temporal region, preceded by twitching of anterior fibers of temporal muscles (after five minutes, second day). Arose at 7 A.M., with feeling as I arose from a lying position as if the brain was all in the occiput, making it feel heavy (third day).


Lower lip has a blister on the inner side as large as an incisor tooth, which I first noticed at 1 P.M.; while eating dinner, at 2 P.M., could not help biting it; for several hours after, whenever I closed my teeth, I would bite it; the inside of lower lip was also somewhat swollen, and this blister the most pointing part (fourth day).


Immediately a sense of pressure or fullness in the parotid, submaxillary, and sublingual glands, in the order named, with some increase of saliva; on left side, increased more and more towards zygoma and malar bone; less on right side (first day). My mouth filled with saliva (soon after the fluttering of heart), which I spat out; my mouth continued filling as rapidly as I could spit for about ten minutes, when it decreased in quantity, but continued in a less and less degree for one hour, or from 2 to 3 P.M. (ninth day).


While writing at a very low table, spasmodic tremulous contractions in pharynx, in the vicinity of the levator palati muscles (after half an hour, second day).


Evacuation of flatus, and eructation of the same; since first dose, easier than common (second morning).


Sensation from left hypochondrium to rectum as of desire for stool, following the course of the large bowel, on rising at 7.30 A.M. (second day); on rising (third morning). Slight colic on lower region of abdomen (one hour after third dose, first day).


After breakfast, a free, loose, yellowish, pappy stool (third day). Have been troubled more or less with constipation since I began the proving; this evening, at 7 P.M., had desire for stool; after much urging was unable to pass anything owing to constriction of sphincter ani; on pressing with finger at the end of coccyx, expelled a small amount of faeces (twelfth day); desire for stool, at 8 A.M.; after much urging with rectus abdominis, expelled a small amount of faeces, notwithstanding the constriction of the sphincter ani (thirteenth day).

Urinary organs

Immediately, sensation in penis, afterwards in bladder (whilst writing), of desire to urinate; later a sort of languid aching through hips and thighs (front) and a small of back (having rested arms on thighs); after a short delay, passed a quantity or normal, some what pale urine (third day).

Respiratory organs

The fumes caught her breath, and produced inflammation of the larynx and of the bronchial tubes, which nearly proved fatal.

Inspiration more easy than usual (second morning).

Heart and Pulse

Some palpitation of heart (one hour after second dose, first day. Fluttering of the heart, while eating dinner at 2 P.M.

(eighth day); while eating dinner, at 1.30 P.M.; at a quarter before 2 P.M., started for the ears, was a few minutes late, and had to run part of the way; after running slowly half a square, was taken with fluttering of the heart, so I had to stop running and walk, when it gradually passed off (ninth day).

Neck and Back.

While taking a cold bath, took a pain in right side of back, about the position of the rhomboideus major muscle, rheumatic, i.

e., catching, muscular pain, on twisting and lifting the limb, at 7.30 A.M. (fifth day). Heavy pain in quadratus lumborum muscle (third day).


Sticking in dorsum of right hand to third knuckle; afterwards successively, the same on dorsum of left forearm and hand, then in back of both thighs when walking, at 7.30 P.M.; directly after, while still walking, a sharp, stitch like drawing pain in front of right forearm, beginning and worse and most persistent at commencement of biceps tendon, above elbow (third day); the pains (especially of the upper extremities) recurred quite frequently, up to the morning of the fourth day. A sort of languid aching through hips and thighs (front) and small of back (having rested arms on thighs), (third day).

Inferior Extremities.

While sitting, a glow, with languid feeling, from calf to sole of left lower extremity, continuing as heat in the sole; within a few minutes, sensation as if perspiration would I break out, while sitting (third day). On walking in the room, a cramp momentarily felt in hollow of right foot (after three-quarters of an hour, second day).


Very much worn out by much hard study and little exercise; felt mentally and physically depressed, like I did previous to having typhoid fever, three years ago; worse from 10 to 12 A.M.; at 12.30 went to gymnasium, and after moderate exercise felt very weak, but improved in about an hour after (eighth day). A pricking sensation in the muscles between the fourth and fifth metatarsal bones of the right foot, at the same time a similar pain in the region of the bladder; both were quite light (after four hours and a quarter). Took breakfast at 8 o’clock (ate bread and butter, and bread and milk), which did not seem digested at 2 o’clock, when I ate dinner a (second day); food or regular meals seemed to be much longer in digesting (third day).


Slept unusually well (first night), and felt the next morning better than usual. Very sleepy, with headache, at 1 P.M.; headache and sleepiness increased, and were worse at 3 P.M., but continued through the evening till I retired, at 11 P.M. (third day).


A chilly sensation passed over me, which commenced in the rectus femoris muscle, passed upward over the body to the face (after ten minutes). While sitting by the stove reading, chilliness, commencing at all points on a line drawn around the chest and over the arms at the lower part of the sternum, pressed upward over the shoulders, up the neck, face, and head, converging at the vertex, at 1 P.M. (second day). Slight feverishness (first and second days). Sensation as if perspiration would break out, while sitting (third day).


(After breakfast), Free, loose, yellowish stool.

(Cold bath), Pain in right side of back.

(On eating dinner), Fluttering of the heart.

(Moderate exercise), Feeling of weakness, but improved soon after.

(Leaning of left side), Sticking ache in left temporal region.

(Sitting), By a stove, line of chilliness through the chest, arms, lower part of sternum, shoulders, neck, face, and vertex; a glow, with languid feeling, from calf to sole of left lower extremity; sensation as if perspiration would break out.

(Walking), Sticking in back of both thighs; sharp stitches in front of right forearm; in room, momentary cramp in front of right foot.

(Writing), At low table, spasmodic, tremulous contractions in pharynx; sensation in penis and bladder of desire to urinate.

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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