Codeine is a medication classified as an opioid analgesic, meaning it is used primarily for pain relief. It is derived from the opium poppy plant and acts on certain receptors in the brain to reduce the perception of pain.

Codeine is commonly prescribed for the treatment of mild to moderate pain or cough suppression. It is often combined with other medications, such as acetaminophen or ibuprofen, to enhance its pain-relieving effects. Codeine is available in different forms, including tablets, capsules, and syrups.