N-Acetyl Cysteine, a derivative of the amino acid L-cysteine, is often used to treat liver failure caused by Acetaminophen overdose or as a mucus thinner to manage angina, colds, the flu and cystic fibrosis. However, research has found that N-Acetyl Cysteine can be used an anti-inflammatory and antioxidant.

Because of its ability to reduce inflammation in the airways, it’s been studied as a treatment for COPD and types of lung disorders. As an antioxidant, it reduces oxidative stress in the body, which then allow cells to repair damage.

Sources and Research:
N-acetylcysteine expresses powerful anti-inflammatory and antioxidant activities resulting in complete improvement of acetic acid-induced colitis in rats.

Effect of high-dose N-acetylcysteine on airway geometry, inflammation, and oxidative stress in COPD patients