About two months ago I started coughing non-stop, and haven't stopped
since.  A doctor x-rayed my lungs and didn't find any sign of
congestion, walking pneumonia, or even a cold.  I have taken all sorts
of medications for coughs, colds and allergies, and lozenges for

Bronchitol
Overview
Pharmaxis’ key product in development, Bronchitol, is a drug designed
to reduce the amount of mucus build-up in the lungs of patients

"Handling of iron in the lung disrupted in acute respiratory distress
syndrome, infections, transfusion-related acute lung injury, ischemia-
reperfusion , exposures to bleomycin, dusts and fibers,
paraquat ,pulmonary alveolar proteinosis, transplantation, cigarette