•Potential for misuse and addiction
•Life-threatening slowed breathing (respiratory depression)
•Risk for opioid overdose
•Life-threatening risks with accidental exposure
•Life-threatening risks with patch exposure to high temperatures (e.g., heat, high fever)
•Difficulty concentrating and extreme sleepiness
•Physical dependence and withdrawal
•Harm to newborn babies
•Drug interactions
•Serotonin syndrome
•Low blood pressure and slow heart rate
•Low adrenal hormone levels
•Seizures