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.
A glass of cold water taken, fasting, in the early morning, will assist in securing a regular action of the bowels. If taken, also, the last thing at night, it has a still better effect. Cold hip-baths are useful for the same purpose.