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Quininae Hydriodidum. Quinine Hydriodide.

Related entries: Quinine - Red Cinchona Bark

C20H25N2O2I = 452.14.

Synonyms.—Quininae Iodidum; Quinine Iodide.

Quinine hydriodide, C20H24N2O2, HI, may be prepared by precipitating a solution of 20 of quinine hydrochloride in 500 of hot water with a solution of 12 of potassium iodide in 30 of water. The precipitate thus obtained is washed, and dried in a dark place at a gentle heat. It occurs in the form of pale yellow crystals or powder, and contains 71.71 per cent. of quinine. A mixture for extemporaneous use, composed of quinine sulphate, 95, and potassium iodide, 40, corresponds to 100 of quinine hydriodide.

Slightly soluble in water; freely soluble in hot water, alcohol, or ether.

Action and Uses.—Quinine hydriodide has been given for tuberculosis and chronic rheumatism. It is best administered in cachets.

Dose.—1/2 to 3 decigrams (1 to 5 grains).


The British Pharmaceutical Codex, 1911, was published by direction of the Council of the Pharmaceutical Society of Great Britain.



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