This section is from the book "A Practitioner's Handbook Of Materia Medica And Therapeutics", by Thos. S. Blair. Also available from Amazon: A Practitioner's handbook of Materia Medica and Therapeutics.
Bromine is a nerve sedative and antispasmodic, and externally is caustic, antiseptic, and disinfectant. It is occasionally used internally in drop doses, but is not to be commended. The homeopaths use it in low dilution in diseases of the larynx and trachea, in mumps and laryngeal diphtheria. Undoubtedly, it exercises some influence in these directions, but as we have remedies so much more effective there is no occasion to employ bromine. In the absence of better antiseptics it was much employed in the treatment of hospital gangrene during the war between the States.