What term describes a substance that relieves the effects of poison?

The term that describes a substance that relieves the effects of poison is known as an antidote. Antidotes work by neutralizing the poison or counteracting its effects in the body. Each antidote is designed to specifically target a particular type of toxin, facilitating the body’s ability to recover from the poison's harmful effects. This can involve various mechanisms, including binding to the toxin, inhibiting its action, or enhancing its elimination from the body.

In contrast, antibiotics are medications specifically used to combat bacterial infections and are not effective against poisons. Anticoagulants are agents that prevent blood clotting, which is unrelated to treating poisoning. Analgesics are pain-relievers that reduce discomfort but do not address the underlying issues caused by poisonous substances. Each of these other options serves different medical purposes and does not relate to antidotal treatment.