This section is from the book "A Treatise On Therapeutics, And Pharmacology Or Materia Medica Vol1", by George B. Wood. Also available from Amazon: Part 1 and Part 2.
This is a vinous tincture, made by macerating powdered opium, cinnamon, and cloves in sherry wine. After maceration with a portion of the wine employed, the U. S. Pharmacopoeia completes the process by percolation with the remainder; thereby ensuring a more complete exhaustion of the powders than by maceration alone. The proportion of opium employed is such as to saturate the wine. The preparation differs from laudanum in having less alcoholic strength, and an addition of aromatic properties, which render it more agreeable to the smell and taste, and, in certain cases, more acceptable to the stomach. Some notice has been attracted to it as an application to the eye in ophthalmia, by the recommendation of Mr. Ware, who found it very useful. When dropped into the eye, it produces at first smarting pain, and a copious flow of tears; but these effects are soon followed by relief from the previous suffering, and considerable abatement of inflammation. The dose is about twenty drops.