Potassium Iodide was used extensively for lung problems prior to WWII. Dosages of up to 1.8 GRAMS daily were used for COPD, asthma, & bronchitis. Many thanks to Trapper who first referenced this history.
I have used up to 800mg daily for my own asthma lung problems. Prior to discovering Colloidal Silver , SSKI helped my asthma extensively, and kept me off the expensive inhalers.
Now I treat my lung problems even more effectively by inhaling Colloidal Silver from a nebulizer whenever my lungs start acting up. Colloidal Silver kills bacteria, fungus & virus within seconds. Fungus & bacteria are major causes of lung problems.