a 45 year old female admitted to the psychiatric unit for major depressive disorder with associated psychosis. She has a history of breast cancer with inoperable metastases to the brain. NKDA...

a 45 year old female admitted to the psychiatric unit for major depressive disorder with
associated psychosis. She has a history of breast cancer with inoperable metastases to the brain. NKDA
Allergies NKDA Current Medications
Fentanyl (Duragesic) 75mcg/hr patch Q3days
Sertraline (Zoloft) 200 mg po daily
Lorazepam (Ativan) 0.5 – 2 mg po or IM q4h prn agitation
Risperidone (Risperdal) 1 mg po BID
Phenytoin (Dilantin) 300 mg po QHS
PMH Major depression with psychosis
Hx of breast cancer
Brain metastases

What are common side effects of fentanyl? How should they be monitored or avoided?