Acetum Lobellae (Vinegar of Lobelia). Lobelia seed powder, 4 oz. Diluted acetic acid, 2 pints. This medicated vinegar may also be prepared by percolation. It is an emetic, nauseant, and expectorant, and a valuable relaxant in spasmodic affections. A good application in such skin diseases as salt-rheum, erysipelas, poisoning by rhus, etc. As an expectorant, 5 to 30 drops every half-hour in elm or flax-seed infusion. One part of Vinegar of Lobelia to 1 part of syrup forms a pleasant preparation for children.