Final answer:
Mucomyst (Acetylcysteine) works by disrupting di-sulfide bonds in mucus, making it less viscous and thus easier to clear from the lungs, aiding mucociliary function.
Step-by-step explanation:
Mucomyst (Acetylcysteine) works by disrupting di-sulfide bonds in the mucus, which makes the mucus less viscous and easier to clear from the lungs. This action enhances the ability to cough up the mucus and is particularly beneficial for patients with pulmonary disorders like cystic fibrosis, where thick, tenacious mucus is a common problem. It does not change the pH of sputum, cause bronchodilation, or directly increase mucociliary activity. However, by reducing mucus viscosity, it indirectly supports the mucociliary escalator function, promoting better clearance of mucus and pathogens from the respiratory tract.