CHARACTERISTIC PECULIARITIES OF ARGENTUM NITRICUM
Scarcely any of the pathogenetic symptoms of the nitrate of silver are as well marked as the head-symptoms : in almost all morbid effects of the nitrate the head is involved; many of those effects especially the disturbances produced in the abdominal organs, co-exist with vertigo, dizziness or cloudiness of the head, as if from intoxication.
Nervous irritations (erethism of the nervous system, neuralgia, etc. are never characterized by acuteness, but by being deep-seated and spreading over a large portion of the ramifications of the affected nerve.
The moral and nervous disturbances (especially chorea and epilepsy, which occur generally at night, or in the morning on rising), are characterized by a sort of type : the paroxysms are apt to recur in the night, early in the morning, or about noon (especially shortly after dinner), and generally, come on every day.
The debility caused, especially that of the lower extremities, is very striking and is excessive, even when the other symptoms are less marked. Among the febrile symptoms, chilliness (shifting chills or constant chilliness) and nausea are the most troublesome and lasting.