There is also short acting dilaudid (hydromorphone) or opana (oxymorphone) -
oxymorphone is stronger than hydromorphone.
The fentanyl patch strengths go up to 100 mcg/hr and
the prescription leaflet shows dosing up to 300 mcg/hr so there is a lot of wiggle room with the fentanyl patches to hopefully give her some relief.
That is fabulous that her cancer is in remission!!! Often even when this occurs, extreme pain can still be left behind from the treatments - especially radiation therapy.