👉 Antidote, in medical terminology, is a substance that neutralizes or reverses the effects of another substance. It's often used in situations where one substance (the cause) has caused harm or discomfort to an individual. In the context of antihistamine therapy, for example, a "antidote" might be a medication that blocks the action of histamine, which is responsible for causing sneezing and other symptoms associated with allergies. This type of medication acts as a "