This section is from the book "Materia Medica And Therapeutics Inorganic Substances", by Charles D. F. Phillips. Also available from Amazon: Materia medica and therapeutics.
There are certain cases in which very striking results may be obtained from the bromides: e.g., a man, aged thirty, subject to attacks since infancy, suffered about once in the week from evening till two or three o'clock the following morning, but, after a fortnight's treatment with full doses of bromide taken at night, he had no further attacks (Saison). As a rule, it will be found that this remedy does not act so well as an "antispasmodic" during the paroxysm, but better if given during the interval, apparently by exerting a sedative influence on the central nervous system.
Dr. Begbie found it very successful in two cases (Edinburgh Medical Journal, 1866), and G. See reported that though the catarrhal element in the malady was not modified, the access of paroxysms was delayed, and the dyspnoea lessened or quite controlled (Bulletin, 1865). I can recommend the bromide in chronic cases of asthma, and especially when there is excentric irritation, as of the pelvic organs; it is sometimes well combined with iodide.