These poisonous drugs relieve the cough and the catarrhal conditions by paralyzing the eliminative activity of the membranous linings of the nasal passages, the bronchi and lungs, the digestive and genitourinary organs; but in doing so, they throw back into the system the morbid matter which Nature is trying to get rid of, and add drug poisons to disease poisons.
"Nature Cure"
Henry Lindlahr