The client with the flu is prescribed the over-the-counter cough suppressant dextromethorphan. Which information should the nurse teach regarding this medication? 1. Take the medication every 4–8...

The client with the flu is prescribed the over-the-counter cough suppressant dextromethorphan. Which information should the nurse teach regarding this medication?

1. Take the medication every 4–8 hours as needed for cough. 2. The medication can cause addiction if taken too long. 3. Do not drive or operate machinery while taking the drug. 4. Do not take a beta blocker while taking this medication.