DIABETES INSIPIDUS. 397 
The prominent symptons are, constant thirst, the passage of very large 
quantities of urine, frequent efforts to empty the bladder, and scantiness of the 
saliva, with consequent dryness of the mouth. 
The appetite is generally good, although never voracious, therefore the 
body remains for a long time fairly well nourished; but eventually the subject 
gradually looses flesh. The blood becomes slowly impoverished, as indicated 
by paleness of the lips and tongue. Chorea is sometimes associated. 
Recovery only rarely occurs, but sufferers from the trouble may live for 
several years even after it has become deeply seated. In so far as possible 
they should be allowed their freedom. Notwithstanding there seems no sound 
reason for withholding starchy foods from the diet, as a matter of fact they are 
not as a rule well borne, and the quantity of urine actually lessens under a 
purely meat diet. 
Ergot, salicylate of sodium, jambul, valerinate of zinc, and gallic acid, 
have all been used, and likely would have good effect if wisely applied. 
But a remedy that acted well in one case might fall flat in another, hence 
much skill is required in the selection of medicines; and in the absence of 
professional assistance it would be advisable to largely restrict the efforts to 
building up the general health by means of such simple tonics, as iron, 
quinine, etc. 
