A male patient, with a history of severe depression and anxiety, complains of chronic daily headaches for many years. He has been taking butalbital/aspirin/caffeine combination medication daily for numerous years. He does not admit to exactly how many pills he takes daily, but is requesting a prescription for 90 pills per month. He claims to understand the possibility of developing medication overuse headaches, but insists on a prescription for long- term headache control. Which of the following is most appropriate for the management of this patient?