Give your liver backup. Get your clear head back.
Clinical reference sources
The Hospital Standard Since 1978
NAC is the standard antidote for a paracetamol (Tylenol) overdose. StatPearls describes it as almost 100% effective when given within 8 hours of ingestion.
This figure applies to medically supervised overdose treatment. Oral NAC was approved as an antidote in 1978.