answersLogoWhite

0


Best Answer

On first application it usually takes 24-72 hours for serum concentrations of fentanyl to reach a peak,

so it may not be until the second patch has been applied that a steady-state concentration is reached.

Break-through analgesia may be required initially. Wean other analgesics slowly after the first patch.2

The patch should be changed every 72 hours.

User Avatar

Wiki User

10y ago
This answer is:
User Avatar
More answers
User Avatar

Wiki User

12y ago

6 HOURS

This answer is:
User Avatar

Add your answer:

Earn +20 pts
Q: What is he onset of action of Fentanyl patch?
Write your answer...
Submit
Still have questions?
magnify glass
imp