My Wife Has Been On Pramipexole 10m For Some Time

My wife has been on Pramipexole 10m for some time for restless legs this medication was not adequate and there has been a need to administer half an Endone tablet to help. Her doctor then prescibed her to take 1 Morphine Sulfatr S R per day (nightly) she has been on this for 4 nightly doses. Her symptoms have become much worse (she is insulin Diabetic and is having far more Hipo's than usual) and far more constant she has lost her appertite and is very unsettled. Can I safely discontinue this medication and go back to the Pramipexole without causing problems until i can see her doctor again. Barrie Wills