Swanson NAC 600mg 100Caps – Antioxidant, Liver & Lung Support

N‑Acetylcysteine (NAC) is a derivative of the amino acid cysteine, functioning as a key precursor to the vital antioxidant glutathione, and also acting as a mucolytic to support respiratory health 

Key Benefits

• Antioxidant & Detox Security: NAC boosts intracellular glutathione, helping combat oxidative stress and aiding detoxification pathways 

• Liver & Respiratory Support: Used medicinally to treat acetaminophen overdose and certain respiratory conditions, NAC supports liver function and respiratory mucus clearance 

• General Health & Aging: Emerging research highlights NAC’s potential in enhancing healthy aging, immune support, and metabolic resilience 

Typical Dosage
A standard oral dose ranges between 600–1,200 mg per day. Some studies extend up to 3,000 mg daily in divided doses 
Safety reviews show that NAC doses ≥600 mg per day are generally well-tolerated, with no increase in side effects at higher levels in certain respiratory studies

Safety & Precautions

• Side Effects: Common side effects include nausea, stomach upset, diarrhea, fatigue, skin reactions, and respiratory irritation

• Drug Interactions & Contraindications:

  • Can slow blood clotting and may interact with anticoagulants.

  • Contraindicated in those using nitrates like nitroglycerin (risk of excessive vasodilation and headache)

  • May reduce effectiveness when taken with activated charcoal, certain antibiotics, or antimalarials

  • Exercise caution if you have asthma, bleeding disorders, or are taking immunosuppressants

• FDA Status: NAC is an FDA–approved drug for medical treatments but currently occupies a regulatory grey zone as a supplement. Consumers should prioritize third-party tested products and consult healthcare providers

Usage Instructions
Take one 600 mg capsule once or twice daily (start with one), with water—preferably between meals unless advised otherwise by a healthcare provider.

Why Choose This Product?

• Potent 600 mg NAC dosage for optimal glutathione support

• Large 100-capsule count offers better value for long-term use

• Supports liver, respiratory, and antioxidant health in one versatile formula

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