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. Solubility, one in six of water.
Tannate of quinine.—Is a weak preparation, but suitable for children. Solubility, one in ten of water.
Acid quinine hydrochloride, or quinine bihydrochloride.—Is a very soluble preparation, and is suitable for hypodermic injection, but is somewhat expensive.
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 hydrochloride or the bisulphate of quinine.
For intra-muscular administration the acid quinine hydrochloride is generally used.
Rhubarb, either in form of compound rhubarb pill, one of the most useful of ordinary aperients, two to four for a dose.
Compound Rhubarb Powder, otherwise known as Gregory’s Powder.