Cough suppressants are medications designed to reduce the urge to cough. They work by acting on the brain's cough center, helping to alleviate persistent coughing that can be uncomfortable and disruptive. Common active ingredients in these medications include dextromethorphan and codeine. These medications are often used for dry coughs, which do not produce mucus. While cough suppressants can provide relief, they should be used cautiously and according to instructions, as excessive use can lead to side effects. It's important to consult a healthcare professional if symptoms persist or worsen.