Definition
An antiemetic drug is a medication used to prevent or relieve nausea and vomiting. It works by targeting receptors in the brain that trigger the vomiting reflex. Think of it like a brake pedal for your stomach when it's feeling queasy. Unlike just ignoring the feeling, these drugs actively stop it. They're often used before or after surgery or during chemotherapy to manage side effects. Different types work in slightly different ways, but all aim to calm your stomach.