A nurse is administering 4 mg of hydromorphone to a client by mouth every 4 hr. The medication is provided as hydromorphone 8 mg per tablet. Which of the following actions is appropriate for the nurse to take?

Return the remaining medication to the facility’s pharmacy.

Dispose of the remaining medication while another nurse observes.

Store the remaining half of the pill in the automated medication dispensing system.

Place the remaining half of the pill in the unit-dose package.