An antitussive is a type of medication designed to suppress coughing. It works by acting on the cough center in the brain, reducing the urge to cough. Antitussives are commonly used to relieve dry coughs that do not produce mucus, making them particularly helpful during colds or flu. There are two main types of antitussives: opioid and non-opioid. Opioid antitussives, like codeine, are effective but may have side effects such as drowsiness. Non-opioid options, such as dextromethorphan, are often found in over-the-counter cough syrups and are generally considered safer for most people.