Which of the following describes an antidote?

An antidote is specifically defined as a treatment that counteracts the effects of poisoning. When someone is exposed to a toxic substance, the purpose of an antidote is to neutralize or mitigate the effects of the poison within the body, leading to the potential prevention of harmful outcomes. This could involve various mechanisms, such as blocking the receptor sites for the toxin, facilitating its removal from the body, or reversing the biochemical effects that the poison has had on the individual’s physiological processes.

The other options do not align with the definition of an antidote. Inducing vomiting to expel toxins focuses on immediate removal of a toxic substance rather than treating its effects. Preventive measures against pest infestations relate to pest management rather than treatment of existing poison effects. Enhancing the potency of pesticides does not involve counteracting poison, but rather increasing its efficacy, which is unrelated to antidote function.