Antidotes are specific agents used to counteract the effects of particular toxins. They work through various mechanisms, such as binding to the toxin, reversing its effects, or enhancing its elimination from the body. For example, N-acetylcysteine is an antidote used in acetaminophen overdose, while activated charcoal can adsorb some ingested poisons. The timely administration of antidotes can significantly improve patient outcomes.