Codeine is a narcotic opioid drug, available only by prescription. It is used to manage pain and coughing, but as an opioid it also causes euphoria and is habit forming. An addiction to codeine is an opioid use disorder and is characterized by misuse of the drug, inability to control use of it, a buildup of tolerance to codeine, and withdrawal symptoms when not using it, among other potential symptoms.
Addiction to any substance is a serious condition that needs to be diagnosed and treated. Opioid and codeine use disorder can cause or exacerbate physical and mental health conditions. It impairs function in normal activities and responsibilities. Treatment can help restore function, improve health, and lead to abstinence and recovery.