N‑Acetylcysteine (NAC)
N‑Acetylcysteine (NAC) explained
N‑Acetylcysteine (NAC) is a glutathione precursor used for respiratory mucus and oxidative stress support; as a drug, it treats acetaminophen overdose.
Not FDA ApprovedN‑Acetylcysteine (NAC) helps treat
• Mucus thinning in respiratory conditions (support)
• Antioxidant/oxidative stress support
• Obsessive or addictive behaviors (emerging evidence)
additional medications
• Lifestyle for lung health
• Antioxidant‑rich diet
• Medical therapies as prescribed
medication risks
• Bronchospasm in asthma (rare)
• Interactions with nitroglycerin and antihypertensives
• GI irritation at higher doses
side effects
• Nausea
• Diarrhea
• Headache
FAQs
Q: Supplement vs drug?A: As a supplement, NAC isn’t FDA‑approved to treat disease; prescription NAC is a drug for specific uses.
Q: Interactions?
A: May interact with nitroglycerin and some BP meds; discuss with your clinician.
Q: Asthma?
A: Bronchospasm is possible—use cautiously under care.
Q: GI tolerance?
A: Divide doses and take with food if nauseated.
Q: FDA approval?
A: Supplements aren’t FDA‑approved to treat disease.
