Patients with codeine prescriptions and recreational users alike can get addicted to codeine. You or someone you know may have a codeine addiction when showing these behaviors: Having an intense urge to use codeine that makes it difficult to focus on other things, Needing larger amounts of codeine to feel the same effects as before, Using an excessive amount of money and time to get and use codeine, Developing uncharacteristic risky behaviors to get more codeine, Feeling unable to stop using codeine or reduce the amount used.