Medical Chemistry. 87 
lent convulsive cough, attended by extreme irritation, was 
entirely relieved by the prussic acid, without sustaining the 
slightest i ete a from her peculiar situation. 
Dr. Granville’s own children, four in number and the ° 
saniees an infant at the breast, were all attacked by the 
whooping-cough, which soon became very violent with the 
usual attendants of suffocation, vomiting, tears, extreme ten- 
sion of the blood vessels of the head, severe head ache, 
deprivation of sleep, &c. In one week they were all cured 
entirely by the exclusive use of the prussic acid. 
‘Dr. A. 'T. Thomson in a communication to Dr. Ciearvills 
says: “the diseases in which I have prescribed the prussic 
acid are catarrhal affections accompanied by cough, and in 
chronic coughs.” —+ J have used it with very gre eat success 
ich act ign epidemically in the 
reach heciaapoeaien T live. The disease’ begins 8 
chills, which are soon followed by a febrile excite 
sneezing, hoarseness and thirst, and a hard cough which 
comes by paroxysms, is more frequent during the night and 
deprives the patients of sleep; the tongue is furred, the 
bowels costive and expectoration very difficult. Since I 
eee used the pesnae acid 1 have — had recourse to 
by the prussic itd upon the circulation. Soot’ be- 
gin by purging the patient, then I give the acid dissolved in 
distilled wate, or ina simple almond emulsion; I take care 
to proportion the dose to the age and strength of the individ- 
uals, gradually increasing it till the cough has ceased. 1 
begin with adults by giving them every two or three hours, 
two drops ina spoonful of the vehicle. For chiklren be- 
tween four months and one a I have prepared the fol- 
mene formula. - 
oR. Prussicacid; «+ = =~ 2 drops.» 
Distilled. water, dew eet vee > @ fluid drachms. 
Syrup of tolu, « - 1 fluid drachm.: 
: Mex that and give two small tea a rem every three 
ours, 
