This section is from the book "The Dogs Of Great Britain, America, And Other Countries. Their Breeding, Training, and Management in Health and Disease", by John Henry Walsh (Stonehenge). Also available from Amazon: The Dogs Of Great Britain, America And Other Countries.
Anodynes are required in the dog chiefly to stop diarrhoea, which is a very common disease with him. Sometimes also they are used for the purpose of relieving spasm. Opium is so little objectionable in the dog that it is almost the only anodyne used; but the dose must be far larger than for human beings, and less than a teaspoonful of laudanum for an average dog will be found to be wholly ineffectual. For slight purging:
6. - Prepared chalk, 2 to 3 drachms. Aromatic confection, 1 drachm. Laudanum, 8 to 8 drachms. Powder of gum arable, 2 drachms. Water, 7 ounces. Mix, and give two tablespoonfuls every time the bowels are relaxed.
or, 7. - Castor oil, from a dessert to a tablespoonful. Laudanum, 1 to 2 drachms. Mix, and give as a drench, repeating it in a day or two if necessary.
For long standing and severe purgation:
8. - Creosote, 2 drachms.
Laudanum, 6 to 8 drachms. Prepared chalk, 2 drachms. Powdered gum arabic, 2 drachms. Tincture of ginger, 2 drachms. Peppermint water, 6 ounces.
Mix, and give two tablespoonfuls every time the bowels are relaxed, but not more often than every four hours.