6. Hypodermic Injection of Quinine

Three to 6 gr. of neutral sulphate of quinine placed on a watch gla , previously warmed, without acid; to this add 12 minims of distilled water, and apply a moderate heat by a spirit lamp for a second, or two. The syringe should be warmed before being used. Dr Rosenthal advocates the use of glycerin as a medium for the solution of various substances used for subcutaneous injection. The glycerin must be very pure. By gradual elevation of temperature it can be made to take up a large number of certain alkaloids and salts, and will retain them di olved for a year. 1 fl. dr. will di olve one scruple of sulphate of quinine, and 10 gr. of hydro chlorate of morphia. Dr Rosenthal states that the injection of quinine has been found very useful in intermit tents.