Codeine is a medication that belongs to the class of drugs known as opioids. It is primarily used as a pain reliever and cough suppressant. Codeine works by binding to opioid receptors in the brain, which helps to reduce the sensation of pain and alleviate coughing. Codeine is commonly prescribed for mild to moderate pain that is not effectively managed by over-the-counter pain relievers such as acetaminophen or ibuprofen. It is also used in combination with other medications, such as acetaminophen or aspirin, to enhance its pain-relieving effects. It's important to note that codeine can cause drowsiness, dizziness, constipation, and nausea. Like other opioids, codeine also carries the risk of dependence, abuse, and addiction, so it should be used with caution and only as prescribed by a healthcare professional. Higher doses or prolonged use of codeine can increase these risks.