What is the recommended dosage for N-Acetylcysteine?

General: 600-1,200 mg/day; Respiratory Support: 600 mg 2-3x/day

What are the side effects of N-Acetylcysteine?

Potential side effects include: Gastrointestinal discomfort (nausea, diarrhea), Unpleasant sulfur taste/smell, Headache, Rare: bronchospasm (in asthma patients, inhaled form).

What is NAC and how does it support the immune system?

N-acetylcysteine (NAC) is a precursor to glutathione, the body's primary intracellular antioxidant. Studies have examined NAC for its potential to support respiratory health, reduce oxidative stress, and maintain immune cell function during illness.

What dosage of NAC has been studied for immune support?

Clinical trials have used NAC at doses of 600–1,800 mg per day, typically divided into two or three doses. For respiratory health outcomes, 600 mg twice daily is a commonly studied regimen over periods of 3 to 6 months.

What are the potential side effects of NAC?

Common side effects include nausea, vomiting, diarrhea, and an unpleasant sulfur taste. NAC may interact with nitroglycerin and certain blood pressure medications. Individuals with asthma should use caution, as inhaled NAC can trigger bronchospasm.

N-Acetylcysteine
N-Acetylcysteine

amino_acid

También conocido como: NAC, N-Acetyl-L-Cysteine, Acetylcysteine

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About

N-Acetylcysteine (NAC) is a direct precursor of glutathione, the body's master antioxidant. It replenishes intracellular glutathione to protect immune cells from oxidative damage, exhibits mucolytic activity to reduce respiratory mucus, and may modulate NF-kB signaling and inflammatory cascades.

How It Works

Direct precursor of glutathione; replenishes intracellular glutathione to protect immune cells from oxidative damage; exhibits mucolytic activity; may modulate NF-kB signaling and inflammatory cascades.

Evidence For Conditions

Condición	Calificación	Estudios	Participantes
Acute Bronchitis	B	10	1500	Ver →
Post-Viral Fatigue	C	5	400	Ver →

Side Effects

Gastrointestinal discomfort (nausea, diarrhea)
Unpleasant sulfur taste/smell
Headache
Rare: bronchospasm (in asthma patients, inhaled form)

Drug & Supplement Interactions

Nitroglycerin (may enhance vasodilatory and headache effects)
Activated charcoal (reduces NAC absorption)
Anticoagulants (theoretical effect on platelet function)

Informe siempre a su profesional de salud sobre todos los suplementos que toma.Siempre informe a su profesional de salud sobre todos los suplementos que toma.

Related Ingredients

Glutamine Arginine

Datos rápidos

Dosificación: General: 600-1,200 mg/day; Respiratory_Support: 600 mg 2-3x/day
Formas: capsule tablet effervescent tablet powder
Fuentes naturales: Poultry, Eggs, Dairy, Garlic, Onions, Cruciferous vegetables (as cysteine)
Límite superior: No established UL; doses up to 1,800 mg/day widely studied
Mejor momento: Between meals on empty stomach for optimal absorption

Resumen de evidencia

Acute Bronchitis B

Post-Viral Fatigue C

Aviso legal FDA: Estas declaraciones no han sido evaluadas por la Food and Drug Administration. Los productos y la información en este sitio web no están destinados a diagnosticar, tratar, curar ni prevenir ninguna enfermedad. Las calificaciones de evidencia presentadas se basan en nuestro análisis de investigación publicada revisada por pares y no constituyen consejo médico. Siempre consulte a su profesional de salud antes de comenzar cualquier régimen de suplementos.