Dihydrocodeine is a prescription medication used to relieve moderate to severe pain. It belongs to a class of drugs known as opioids, which work by binding to specific receptors in the brain to reduce the perception of pain. Dihydrocodeine is often prescribed for conditions such as post-surgical pain or injury-related discomfort. This medication can also be used as a cough suppressant in some cases. It is important to use dihydrocodeine only as directed by a healthcare professional, as it can lead to dependence or addiction if misused. Common side effects may include drowsiness, constipation, and nausea.