As Distict Nurses we apply Fentanyl patches in the community. The company state in their leaflet that the patch can be covered with Tegaderm or Opsite but Quality Control put out an alert to say they should not be covered as this increases the temperature thus reincreasing the drug released. We try to avoid any cover but ocassionly patients with oily skin causes the patch to slip off.
I'm the H/S officer as well and have been given this task to find out "Best Practice".