MEDICAL HINTS. 
241 
they are all popularly known as quinine, their uses are similar, and the 
doses are as follows:— 
Dose, one to five grains, as a tonic. 
„ five grains as a preventative of malaria. 
„ five to twenty grains, in fevers. 
Sulphate of quinine, formerly called quinine disulphate .—This is the 
preparation most commonly used; but it is very insoluble in water, and 
is, in point of fact, the least suitable. 
Acid sulphate of quinine , sometimes cahed bisulphate, soluble or neutral 
sulphate of quinine. 
The acid sulphate is much more soluble than the sulphate, and is 
a more suitable preparation for administration by the mouth or for 
injection into the bowel. 
Hydrochloride of quinine. —Is a very soluble preparation, and contains 
a large percentage of quinine. 
Quinine hydrobromide.—Is more soluble than the sulphate, and less 
liable to cause headache and other quinine symptoms. 
Acid quinine hydrobromide. —Very soluble and non-irritating, therefore is 
one of the best forms for hypodermic use. Solubility, one in six of water. 
Lactate of quinine. —Is a soluble preparation, and is suitable for hypo¬ 
dermic injection. I have never found it cause irritation when injected 
well under the skin. Solubility, one in ten of water. 
Acid quinine hydrochloride , or quinine dihydrochloride , sometimes called 
quinine bihydrochloride. Is a very soluble preparation, and is suitable 
for hypodermic injection. 
It is soluble in less than its own weight of water. 
For administration by the mouth or bowel, the traveller is advised to 
take either the hydro shloride or the hydrobromide of quinine. 
For hypodermic administration, I formerly used the lactate of quinine 
recently I have only used the acid quinine hydrochloride. 
Sandalwood oil. —Uses and doses as for Balsam of copaiba. 
Soda, bicarbonate of .—Dose, five to ten grains or more. Five to ten 
grains dissolved in water may be given twice a day for acidity, flatulence, 
heartburn. Useful in dysentery to allay irritation of stomach; for this 
purpose five or ten grains may be given an hour before each dose of 
ipecacuanha. 
VOL. II. 
R 
