← Drug quick-reference

Fentanyl

Brand: Duragesic

Opioid analgesic (C-II)Used for: Severe/chronic painPain & Inflammation
Key warning

Boxed warning: addiction, abuse, and life-threatening respiratory depression

Common side effects

  • Slowed breathing
  • Drowsiness
  • Constipation
  • Nausea
  • Confusion

Key interactions & cautions

  • Dangerous sedation with benzodiazepines
  • Alcohol increases overdose risk
  • Some antifungals raise its levels
  • Additive effect with other CNS depressants

Counseling points

  • Apply patch to clean, dry, intact skin
  • Do not cut the patch or use heat on it
  • Keep away from children and pets
  • Do not drink alcohol
  • Fold and dispose of used patches safely
← CyclobenzaprineHydrocodone/acetaminophen →

High-yield study aid for exam prep — not a substitute for the package insert or a pharmacist’s dispensing reference.