Problem: A client with lung cancer has developed an intractable, nonproductive cough that is unrelieved by nonopioid antitussive agents. The physician prescribes codeine, 10 mg by mouth every 4 hours. When discussing this medication with a nursing colleague, which statement that accurately describes codeine will the nurse include? It is a peripherally acting antitussive and does not cause dependence. It is a peripherally acting antitussive and can cause dependence. It is a centrally acting antitussive and can cause dependence. It is a centrally acting antitussive and does not cause dependence.