CASE-REPORT
We report a case of serotonin syndrome caused by interaction between nasal fentanyl, oxycodone and escitalopram. Due to chronic painful episodes with paroxistic level of pain, a 66-year-old patient, treated for prostate adenocarcinoma and bone metastases received an association of major opiate analgesics (oxycodone 120 mg/day for 6 months, and fentanyl nasal spray four puff of 200 m...