Antidote: On Acetaminophen . Acetaminophen is a feel-good drug that is just too easy to overuse. We need to keep track of how much we take before we become yet another statistic. Marc Siegel, MD.

Acetaminophen, the active ingredient in Tylenol and many other over-the-counter pain relievers, ... – N-acetylcysteine (NAC) is the antidote, most effective within 8 hours of ingestion.

The Food and Drug Administration (FDA) has approved a new dosing regimen for Acetadote ® (n-acetylcysteine [NAC] for injection), an antidote for acetaminophen overdose.. According to Cumberland ...

An antidote is available (an intravenous medicine called N-acetylcysteine) but it is most effective if given within 24 hours of overdose. A rescue liver transplant may be needed, especially if ...