What is the primary function of an antidote when dealing with pesticide exposure?

The primary function of an antidote in the context of pesticide exposure is to reverse the effects of poisoning. When a person is exposed to a harmful pesticide, the antidote acts by counteracting the specific biochemical effects of the poison, thereby alleviating symptoms and reducing toxicity. This process can involve various mechanisms, such as binding to the toxin to prevent its interaction with bodily systems, or restoring normal body function that has been disrupted by the pesticide.

Understanding this is crucial for anyone handling or applying pesticides, as it emphasizes the importance of having access to appropriate antidotes and knowing their function in emergency situations. Other options such as enhancing effectiveness, preventing harm, or increasing resistance do not directly address the need to mitigate the immediate health risks posed by pesticide exposure, which is why they do not represent the primary function of an antidote.