You have a PMHNP co-worker who is new to practice. She asks…

You have a PMHNP co-worker who is new to practice. She asks if you will consult on one of her patients. She inherited a patient from a psychiatrist in town that has since retired. The patient is a 52-year-old male that has a history of bipolar disorder and is currently taking: depakote ER 1000 mg twice daily, lamotrigine 200 mg daily, abilify 30 mg daily, zyprexa 20 mg daily, seroquel 100 mg daily at night and clonazepam 1 mg three times daily. She notes the patient “looked like he was drooling” during the appointment and was concerned with all the medications that he was on and interactions. When looking at the combination of depakote and lamotrigine what is your best response: