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3Medicinal

NAC

Also sold as N-acetylcysteine, acetylcysteine

A genuine hospital antidote; also used for mucus and glutathione support.

TrustedSupp Tier System™ · Tier 3Take as a defined course
Check before you startThis one has documented interactions with medication classes where the consequences are serious. If you take any prescription medicine, run it past a pharmacist before starting.

Evidence strength

70/100Strong
WEAKLIMITEDMODERATESTRONGVERY STRONG

What the evidence supports: mucus clearance and as a paracetamol antidote, where it is definitive.

This scores how well-supported the claim above is — not how much benefit you personally would get. A high score on a narrow claim does not extend to everything the product is marketed for.

How long to take it

Course-based for respiratory or specific uses.

Who it's actually for

People with chronic mucus, and specific supervised clinical uses.

Safe upper limit

Unverified
No formal limit; 600–1,800 mg daily in trials
Nausea is common. Mild blood-thinning effect at higher doses.
No source or citation attached yet.

Interactions to know about

Other supplements:

Run your full list through the interaction check.

Practical notes

  • Smells strongly of sulphur — that's normal.
  • Regulatory status varies by country.