A method of treating a respiratory disease in an animal comprising the steps of administering to the animal an effective amount of a pharmaceutical composition comprising 1.5 parts by weight powdered fennel, 2.0 parts by weight powdered rhubarb, 1.0 part by weight powdered glycyrrhiza, 2.0 parts by weight powdered phellodendron bark, 1.0 part by weight powdered zedoary, 1.5 parts by weight powdered picrasma wood, 1.0 part by weight powdered matricaria chamomilla, 1.5 parts by weight powdered geranium herb, 1.0 part by weight powdered ginseng, 1.5 parts by weight powdered citrus unshiu peel, 1.0 part by weight powdered scutellaria root, 1.0 part by weight powdered magnolia bark, 2.0 parts by weight powdered oyster shell, 1.0 part by weight powdered cyperus rhizome, 2.0 parts by weight powdered platycodon root, 2.0 parts by weight powdered melia azedarach, 1.0 part by weight powdered cnidium rhizome, 2.0 parts by weight sodium bicarbonate and 4.0 parts by weight precipitated calcium carbonate in 30 parts by weight of the composition.
