About fenta nyl
Opioid pain medicine
Used for
- Long-lasting severe pain requiring continuous opioid treatment
Usual adult dose
Applied every 72 hours; dose is individualized based on prior opioid use and pain control.
Usual dose in children
For opioid-tolerant children aged 2 years and older: dose is individualized; usually changed every 72 hours.
Common side effects
- Sleepiness, dizziness, nausea, constipation
- Slow or difficult breathing
- Confusion or weakness
- Skin irritation where the patch is applied
Important warnings
- Only for opioid-tolerant patients; not for occasional or short-term pain.
- Overdose can be fatal, especially in children; keep patches secured and safely dispose of used patches.
- Heat, fever, or hot baths can increase absorption and overdose risk.
- Do not cut the patch; avoid alcohol and sedatives unless specifically directed.
Pregnancy
May cause serious withdrawal symptoms in a newborn with prolonged use during pregnancy.
Breastfeeding
Not recommended during breastfeeding; fentanyl can cause infant sleepiness and breathing problems.
Interactions
- Benzodiazepines, alcohol, and other sedatives increase breathing and sedation risks.
- Some antibiotics, antifungals, and HIV medicines can raise fentanyl levels.
- Rifampin, carbamazepine, and phenytoin can lower fentanyl levels.
- Serotonergic medicines may increase the risk of serotonin syndrome.
AI-generated from general medical knowledge, not from this product's official leaflet. It may be incomplete or out of date. Not medical advice — ask a pharmacist or doctor before making any decision.