AMMONIAC.
Gummi Ammoniacum. See Homoeopathic Gazette. Duration of Action?.
RATIONALE OF ITS ACTION.
Ammoniac is the concrete juice of an umbelliferous plant denominated Dorema-Ammoniacum, six or seven feet in height, growing in Persia and Afghanistan. All parts of the plant contain a milky juice. At certain seasons this exudes through punctures made in the plant, and hardens in the shape of tears, which are collected for use. It is exported from Bushire, and usually reaches Europe and this country through the ports of Hindostan. Though usually important from Bombay, it occasionally comes from the Levant.
It is said to be a stimulant, although Trousseau and Pidoux deny that it has any stimulant properties whatever, having taken it in two-drachm doses without observing any such effect. Still, large doses are said to cause congestion, violent pains in the head, especially in the occiput and forehead; pains in the eyes and dim-sightedness, aching in the chest and spitting of blood, restlessness, loss of appetite, relaxation and weakness of the stomach, and diarrhoea.
Wood says, like many other stimulants, it may be given so as to prove diaphoretic, diuretic, and emanagogue, although its principal action is manifested upon the pulmonary, gastric, intestinal, and urinary mucous membranes.
Again, it is asserted, that is not merely a stimulant, but nervous stimulant. although much less powerful and useful in nervous affections (except in those which arise form primary disorder of the mucous membranes) than Asafoetida. Galbanum, and Olibanum.
It is generally regarded as a trivial remedy, but that is only because it is so frequently used in inappropriate cases, and in too large or too small doses, and at improper times and stages of the diseases against which it is suited. J. C. P.
GENERAL EFFECTS UPON THE NERVOUS SYSTEM.
In addition to other properties, it has been supposed to possess those of a nervous stimulant, in a somewhat less degree, however, than Asafoetida and Galbanum. In this capacity it has been supposed to be useful in some affections of the optic nerve, in neuralgic and colicky affections of the bowels, in nervous and asthmatic affections of the chest; but in all these disorders its action on the nerves is probably secondary to that upon the mucous membranes of these parts.
Nerves of Motion.
It probably acts more decidedly upon the nerves of motion than upon those of sensation. It seems to exert a specific action the motor nerves of the chest, abdomen, and limbs, as evidenced by the cramps and pains in the chest and bowels, and the rheumatic pains in the limbs which it removes.
ON THE VASCULAR SYSTEM.
Although, when used externally, it acts as a local irritant, often producing a papular eruption, and sometimes considerable inflammation of the skin, yet it is generally though to exert a very moderate excitant influence over the circulation. In large doses, it often occasions a feeling of heat, weight, or uneasiness in the stomach.
ON THE BLOOD.
It action on this fluid in unknown; it doubtless tends rather to increase the white than the red globules.
FEVER AND PULSE.
Increased circulation in the capillaries; pulse small, corded, quick, and hard; tendency to chilliness and perspiration.
ON THE LYMPHATICS AND GLANDS.
It has generally been supposed to exert a specific action upon the lymphatics, glands, and absorbents, and has been much used to promote the resolution of scrofulous tumors, chronic swelling of the joints, venereal nodes and tumefactions, and enlargements of the liver. It is said to increase the flow of lymph more than any other gum-resin.
ON THE MUCOUS MEMBRANES.
This is apparently the great centre of the action of Ammoniacum; it doubtless acts more specifically upon these parts, and upon the mucous follicles and muciparous glands, than upon any other tissues. It is homoeopathic to catarrhal affections of many of the mucous membranes, and also to catarrhal rheumatic affections, and to scrofulo-spasmodic affections, such as scrofulous ophthalmia, when attended with much spasm of the eyelids; scrofulous bronchitis, when attended with spasmodic or asthmatic affections of the muscular fibres of the bronchial tubes, and in chronic or scrofulous affections of the intestinal mucous membrane, especially when attended with spasmodic or colicky affections of the bowels. Vogt says it acts more powerfully than Asafoetida upon condensed secretions of mucus and lymph, influencing especially the mucous membranes of the chest, abdomen, and genitals. Besides increasing the flow of mucus, it is said genitals. Besides increasing the flow of mucus, it is said undoubtedly to possess the power of rendering a thick and tough secretion more serous, and hence is thought to be more suitable in blenorrhoeas of viscid, than of merely profuse mucus. In fact, it is regarded as mucum incidens et resolvens. It acts much less decidedly upon the serous membranes and cellular tissue. J.C.P.
