Intermittent neuralgia in head and face,with intense pulsation,vertigo, etc.
Vertigo, twitching of eyelids.
Intermittent strabismus.
Pneumonia, with great oppression, weakness, deafness and whizzing in ears, or rushing like a storm in ears, or ringing of bells, must lie on the back (Sang).
In spinal irritation, with great sensitiveness of the spine in the region of the first dorsal vertebrae, the pain extending towards the head and apt to recur periodically.
Intermittent fever, the paroxysms recurring with great regularity at the same hour, especially indicated by the extreme sensitiveness of the dorsal vertebrae, with pain on pressure, in other respects very much like China.
Intermittent fever is sometimes certainly cured completely and permanently by this drug, but only a small proportion of the cases are thus cured.
Quinine possesses the curious property of preventing in a measure the development of marsh-malarial poisoning in the system in a way similar to that in which mercury prevents the development of syphilis, but when once developed China will only occasionally cure the disease.