Potassium Cyanide. K. C. N.
Proved by Lembke in 1st and 2d triturations. Toxicological reports; see Allen's Encyclopaedia, vol. 5, p. 323.
- Neuralgic headaches, Cattell, B. J. H., vol. 11, p. 348; Affection of chest, Cattell, B. J. H., vol. 11, p. 39.
SIGHT AND EYES. 
UPPER FACE. 
Agonizing attacks of neuralgic pains between temporal region and ciliary arch and maxilla, with screaming and apparent loss of sensibility, as if struck with apoplexy; pulse 84; face flushed.
Severe neuralgic pains in temporal region and left upper jaw, daily at 4, increasing till 10, and ceasing at 4 P. M., in their interval anorexia, fever, headache.
Torturing neuralgic pains in orbital and supramaxillary region, recurring daily at same hour, with much flushing of that side of face.
INNER CHEST AND LUNGS. 
Dullness on percussion; respiration feeble, mixed with crepitus and bronchial rales, on right side below clavicle; troublesome cough, preventing sleep at night.
LIMBS IN GENERAL. 
Acute rheumatism in articulations.
Night: cough prevents sleep.
ATTACKS, PERIODICITY. 
Daily at 4: severe neuralgic pains in left upper jaw, increasing till 10, ceasing at 4 P. M.
Daily at same hour: torturing neuralgic pains in orbital and supramaxillary region.
LOCALITY AND DIRECTION. 
Right: bronchial rale.
Left: severe neuralgic pains in upper jaw.
As if struck with apoplexy.
Neuralgic pains: in orbital and supramaxillary region.
Agonizing attacks: of neuralgic pains between temporal region and ciliary arch and maxilla.
Severe neuralgic pains: in temporal region and left upper jaw.
Acute rheumatism: in articulations.
Compare: Cedron, Stannum, and Platina in periodical neuralgia.