SPHERE OF ACTION
This is a special irritant of the cerebral-spinal system, having its special centre of action upon the pneumogastric nerve; in some cases the functions of the vagi are so prostrated that respiration ceases and death ensues.The next organ which suffers the most (excepting the parts supplied by the vagi) is the head.
Through the vagi, the heart is most powerfully affected.
It also has a special influence on the spine.
GRAND CHARACTERISTICS.
In diseases that call for Naja, the neurotic symptoms predominate over the haematic.
Temporo-frontal headache, accompanied with great depression of spirits, and associated with spinal pain, and palpitation of the heart.-DR. RUSSELL.
Pharyngo-laryngeal inflammation, with dark, red color of the fauces, and spasmodic irritable cough.
To quiet chronic nervous palpitation, to aid in the restoration of a heart recently damaged by inflammation, and to assuage the sufferings of chronic hypertrophy and valvular disease, it is ranked by Dr. Russell as the chief remedy, and I think I can confirm his statement.
Its action is very similar to that of Lachesis.