, gallodobic acid, is obtained from the ink nut, growths of Asia Minor oak of the sumac family. Powder astringent taste. Aqueous solutions form precipitates with alkaloids, proteins, salts of heavy metals. Used as an astringent and anti-inflammatory agent. For rinsing the oral cavity, nose, larynx, pharynx, and mouth, use a 1-2% aqueous solution and lubrication with a 5-10% solution for burns, cracks, ulcers, bedsores. It is part of the Novikov antiseptic fluid.