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.
Ricinus, Castor Oil. A valuable cathartic in 0 to I f dose. Its disagreeable taste can be overcome by adding to it a small quantity of an alcoholic solution of saccharin and some essential oil. Cinnamon serves admirably. The mixture may require a "shake" label, depending upon the kind of alcohol used, since the oil does not combine well with alcohol below 98% absolute.