Epithelioma of the face has been cured by applying to the ulcerated surface bromide of potassium in fine powder. A solution, gr. x—gr. xx to an ounce of water, is a useful application for allaying the itching in pruritus, prurigo, and similar conditions, and the powder dusted over the surface is an effective remedy for eczema, old ulcers, etc.

Acidum Hydbobromicum Dilutum

Diluted hydrobromic acid. A liquid composed of ten per cent of absolute hydrobromic acid and ninety per cent of water. A clear, colorless liquid, odorless having a strongly acid taste, and an acid reaction. Dose, τη xx — 3 ij-

Hydrobromic acid has many of the properties of the bromides, and can therefore be substituted for the latter in some cases. In the treatment of epilepsy, the acid is far inferior to the bromides. In spasmodic cough it has proved very useful. In angina pectoris, or cardiac irregularities due to acidity of the stomach, it is highly useful, given before meals. The tinnitus, dizziness, and headache caused by quinine may be largely diminished, if not wholly prevented, by the addition of hydrobromic acid to the solutions containing the former, or by giving the latter some time after. The after-nausea and depression caused by morphine may be obviated by the simultaneous or subsequent administration of hydrobromic acid.

Authorities referred to:

Anstie, Dr. F. E. Neuralgia and the Diseases that resemble it, English edition, p. 185.

Bannister, Dr. H. M. The American Journal of Neurology and Psychiatry, vol. i, p. 369.

Bartholow, Dr. R. The Bromides: their Physiological Effects and Therapeutical Uses, Fisk-Fund Prize, Providence, 1871.

Bill, Dr. J. H. American Journal of the Medical Sciences, July, 1868.

Browne, Dr. J. C. The Action of the Bromide of Potassium on the Nervous System Pamphlet.

Brown-SÉquard, Dr. C. E. Functional Nervous Affections, Part i, p. 35.

Clarke and Amort. The Physiological and Therapeutical Action of the Bromide of Potassium and the Bromide of Ammonium, Boston, 1872.

Da Costa, Dr. J. M. American Journal of the Medical Sciences, April, 1871.           

Damourette et Pelvet. Bulletin Général de Thérapeutique, vol. lxiii, p. 296.

Day, Dr. Albert. Methomania, Boston, 1867, p. 30.

Echeverria, M. Gonzales. On Epilepsy, p. 316.

Eulenburg und Guttmann. Schmidt's Jahrbücher der gesammten Medicin, vol cxxxvii, p. 158.

Gillespie, Dr. Charles. American Journal of the Medical Sciences, October, 1870.

Hammond, Dr. William A. On Wakefulness.

Ibid. The Psychological Journal.

Laborde, Dr. J. V. Archives de Physiologie Normale et Pathologique, May, 1868.

Lewizky, aus Kasan. Virchow's Archiv für pathologische Anatomie, 1868, p. 183.

Pletzer, M. Schmidt's Jahrbücher der gesammten Medicin, Band cxxxix, p. 166, No. 8, 1868.

Rabuteau, M. Gazette Hebdomadaire, March 19, 1868.

Reynolds, Dr. J. Russell. The Practitioner, July, 1868.

Spender, Dr. J. Kent. The British Medical Journal, 1884.

Voisin, A. Bulletin Général de Thérapeutique, vol. lxxi, p. 102.

Williams, Dr. S. W. D. On the Efficacy of the Bromide of Potassium in Epilepsy, etc., Churchill, 1865.